332354 + Interview Questions in Secondary School in Math

1.	4. The Sunset the age a woman and her daughter is 46 years. In 4 years time, the ratio of thier age will be 7:2 Find the present age
Answer» ANSWER: The sum of the ages of a woman and her daughter is 46 years. x + y = 46 or y = (46-x) ; In FOUR years time the ratio of there ages will be 7:2 Cross multiply 2(x+4) = 7(y+4) 2x + 8 = 7y + 28 2x = 7y + 28 - 8 2x = 7y + 20 replace y with (46-x) 2x = 7(46-y) + 20 2x = 322 - 7x + 20 2x + 7x = 342 9x = 342 x = 342/9 x = 38 yrs is the woman's age PLEASE MARK AS BRAINLIEST!!!

1.

4. The Sunset the age a woman and her daughter is 46 years. In 4 years time, the ratio of thier age will be 7:2 Find the present age

Answer»

ANSWER:

The sum of the ages of a woman and her daughter is 46 years.

x + y = 46

or

y = (46-x)

;

In FOUR years time the ratio of there ages will be 7:2

Cross multiply

2(x+4) = 7(y+4)

2x + 8 = 7y + 28

2x = 7y + 28 - 8

2x = 7y + 20

replace y with (46-x)

2x = 7(46-y) + 20

2x = 322 - 7x + 20

2x + 7x = 342

9x = 342

x = 342/9

x = 38 yrs is the woman's age

PLEASE MARK AS BRAINLIEST!!!

Discussion

2.	Find the HCF prime factorization 40,56,60
Answer» Step-by-step EXPLANATION: PLEASE MARK me as BRANLIEST

2.

Find the HCF prime factorization 40,56,60

Answer»

Step-by-step EXPLANATION:

PLEASE MARK me as BRANLIEST

Discussion

3.	100 the value of 15 upto 3 decimal places.6. Find the value of V7 up to six decimal places by long division method.1.4roInNoSudecimal7. Locate V10 on number line.8. Find atleast two irrational numbers between 2 and 3.9. State whether the following statements are true or false. Justify your answers.(1) Every irrational number is a real number(11) Every rational number is a real number.(mi) Every real number need not be a rational number(iv) Vn is not irrational ifn is a perfect square,(v) Vn is irrational ifn is not a perfect square.(vi) All real numbers are irrational.3FREE DISTRIBUTION BY A.P.Gov FREE DISTRE
Answer» Answer: 100000000000000000001028$83737377383736711

3.

100 the value of 15 upto 3 decimal places.6. Find the value of V7 up to six decimal places by long division method.1.4roInNoSudecimal7. Locate V10 on number line.8. Find atleast two irrational numbers between 2 and 3.9. State whether the following statements are true or false. Justify your answers.(1) Every irrational number is a real number(11) Every rational number is a real number.(mi) Every real number need not be a rational number(iv) Vn is not irrational ifn is a perfect square,(v) Vn is irrational ifn is not a perfect square.(vi) All real numbers are irrational.3FREE DISTRIBUTION BY A.P.Gov FREE DISTRE

Answer»

Answer:

100000000000000000001028$83737377383736711

Discussion

4.	Question 9(Multiple Choice Worth 1 points) (08.05 MC) Use the functions f(x) and g(x) to determine which function has the smallest zero and provide its coordinates. f(x) = 2x2 − 14x + 20 x g(x) 18 −17 19 0 20 19 21 40 22 63 f(x); (2, 0) f(x); (−5, 0) g(x); (19, 0) g(x); (−17, 0)
Answer» Given: f(x) = 2x2 − 14X + 20 x g(x) 18 −17 19 0 20 19 21 40 22 63 f(x); (2, 0) f(x); (−5, 0) g(x); (19, 0) g(x); (−17, 0) To find: Use the functions f(x) and g(x) to determine which function has the smallest zero and provide its COORDINATES. Solution: From given, we have, x g(x) difference of g(x) difference 18 −17 19 0 0 - (-17) = 17 20 19 19 - 0 = 19 19 - 17 = 2 21 40 40 - 19 =21 21 - 19 = 2 22 63 63 - 40 =23 23 - 21 = 2 Thus g(x) is a QUADRATIC function and the regression is given as, g(x) = x^2 - 20x + 19 The zeros of g(x) are given by, x = ±√[(-20)² - 4(1)(19)]/2(1) x = ±9 The coordinates of zeros are (-9, 0) and (9, 0) f(x) = 2x^2 − 14x + 20 The zeros of f(x) are given by, x = ±√[(-14)² - 4(2)(20)]/2(2) x = ± 1.5 The coordinates of zeros are (-1.5, 0) and (1.5, 0) The smallest zero is (-1.5, 0) and it corresponds to f(x).

4.

Question 9(Multiple Choice Worth 1 points) (08.05 MC) Use the functions f(x) and g(x) to determine which function has the smallest zero and provide its coordinates. f(x) = 2x2 − 14x + 20 x g(x) 18 −17 19 0 20 19 21 40 22 63 f(x); (2, 0) f(x); (−5, 0) g(x); (19, 0) g(x); (−17, 0)

Answer»

Given:

f(x) = 2x2 − 14X + 20 x g(x) 18 −17 19 0 20 19 21 40 22 63 f(x); (2, 0) f(x); (−5, 0) g(x); (19, 0) g(x); (−17, 0)

To find:

Use the functions f(x) and g(x) to determine which function has the smallest zero and provide its COORDINATES.

Solution:

From given, we have,

x g(x) difference of g(x) difference

18 −17

19 0 0 - (-17) = 17

20 19 19 - 0 = 19 19 - 17 = 2

21 40 40 - 19 =21 21 - 19 = 2

22 63 63 - 40 =23 23 - 21 = 2

Thus g(x) is a QUADRATIC function and the regression is given as,

g(x) = x^2 - 20x + 19

The zeros of g(x) are given by,

x = ±√[(-20)² - 4(1)(19)]/2(1)

x = ±9

The coordinates of zeros are (-9, 0) and (9, 0)

f(x) = 2x^2 − 14x + 20

The zeros of f(x) are given by,

x = ±√[(-14)² - 4(2)(20)]/2(2)

x = ± 1.5

The coordinates of zeros are (-1.5, 0) and (1.5, 0)

The smallest zero is (-1.5, 0) and it corresponds to f(x).

Discussion

5.	Give an example for non terminating decimal expression
Answer» 0.5 is an EXAMPLE of NON TERMINATING DECIMAL EXPRESSION .

Discussion

6.	Find x , Lines and Angles Class 9.....☺️☺️
Answer» Answer: $\text{[math]}$ just draw a PARALLEL LINE from b then U can easily SOLVE it $\text{[math]}$ ♥Leave a Like♥ ❤Follow mee❤ ♠30thx+Follow=INBOX♠

6.

Find x , Lines and Angles Class 9.....☺️☺️

Answer»

Answer:

$\text{[math]}$

just draw a PARALLEL LINE from b

then U can easily SOLVE it

$\text{[math]}$

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Discussion

7.	3.Which one of the following denotes the greatest positivproper fraction?log, 61log3 51A)B)4.دن1C) 3-log, 2D)8- log 2
Answer» ANSWER: 1 a HO GA answer log 3 5 OK

7.

3.Which one of the following denotes the greatest positivproper fraction?log, 61log3 51A)B)4.دن1C) 3-log, 2D)8- log 2

Answer»

ANSWER:

1 a HO GA answer log 3 5 OK

Discussion

8.	Convert the given fraction into like fraction? 3/4 , 5/8
Answer» ANSWER: these are only the like FRACTIONS these are only the like fractions because on like fractions the denominator is GREATER than NUMERATOR

8.

Convert the given fraction into like fraction? 3/4 , 5/8

Answer»

ANSWER:

these are only the like FRACTIONS

these are only the like fractions because on like fractions the denominator is GREATER than NUMERATOR

Discussion

9.	In which day modi sir start lockdown
Answer» ANSWER: THRUSDAY only the LOCKDOWN will START

9.

In which day modi sir start lockdown

Answer»

ANSWER:

THRUSDAY only the LOCKDOWN will START

Discussion

10.	Slove....
Answer» ANSWER: please MARK me as brainlist koi MUJHE bhi thanks kar do here is your answer hope it HELPS you Step-by-step explanation: 156,728,328,192

10.

Slove....

Answer»

ANSWER:

please MARK me as brainlist koi MUJHE bhi thanks kar do

here is your answer hope it HELPS you

Step-by-step explanation:

156,728,328,192

Discussion

11.	Prove that 0+0 = 0-0 . with explanation
Answer» Answer: $\text{[math]}$ 0+0=0-0 0=0 =0 $\text{[math]}$ ♥Leave a Like♥ ❤Follow mee❤ ♠30thx+Follow=INBOX♠

11.

Prove that 0+0 = 0-0 . with explanation

Answer»

Answer:

$\text{[math]}$

0+0=0-0

0=0

=0

$\text{[math]}$

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Discussion

12.	एक 10 मिमी भुजा वाली वर्गाकार राॅड की 1 टन भार के तनन बल के लिए जांच की जाती है तनन बल की गणना किजिए10kg15kg20kg25kg
Answer» Answer: 20 kg Step-by-step EXPLANATION:

12.

एक 10 मिमी भुजा वाली वर्गाकार राॅड की 1 टन भार के तनन बल के लिए जांच की जाती है तनन बल की गणना किजिए10kg15kg20kg25kg

Answer»

Answer:

20 kg

Step-by-step EXPLANATION:

Discussion

13.	Of quantitygivenFind the original amountFollowingInformationincreaseܘ1 %gives a finalamount of you
Answer» COMPLETE the QUESTION

Discussion

14.	if the weight of a class 34 students is 42 kg. if the weight of the teacher be included,the mean rises by 400 grams. find the weight of the teacher.
Answer» ANSWER: $\text{[math]}$ USE the formula Of STATISTICS $\text{[math]}$ ♥Leave a Like♥ ❤Follow mee❤ ♠30thx+Follow=INBOX♠

14.

if the weight of a class 34 students is 42 kg. if the weight of the teacher be included,the mean rises by 400 grams. find the weight of the teacher.

Answer»

ANSWER:

$\text{[math]}$

USE the formula Of STATISTICS

$\text{[math]}$

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Discussion

15.	কোন এক বাজারে পাটের ব্যাগ বিক্রির সময়ে উৎপাদনকারী পাইকারি বিক্রেতা ও খুচরা ব্যবসায়যথাক্রমে 15%, 20% ও 25% লাভ করেন। এখন যদি কোনো একটি ব্যাগ উৎপাদনকারী, পাইকারিবিক্রেতা ও খুচরো ব্যবসায়ীর মধ্য দিয়ে কেতার কাছে পৌঁছায়, তবে নীচের প্রশ্নের উত্তর খুঁজি:(i) যে ব্যাগ ক্রেতা 138 টাকা দিয়ে কিনেছে তার উৎপাদন খরচ হিসাব করে লিখি।(ii) যে ব্যাগের খরচ 140 টাকা সেই বাগ ক্রেতা কী দামে কিনবে হিসাব করে লিখি।(iii) খুচরা ব্যবসায়ী যে ব্যাগ 98 টাকা দিয়ে কিনেছেন সেই ব্যাগ কিনতে ক্রেতাকে কত টাকা দিতে হবে? হিসাব করে লিখি। (iv) পাইকারি বিক্রেতা যে ব্যাগ 175 টাকায় কিনেছেন সেই ব্যাগ কিনতে ক্রেতাকে কত টাকা দিতে হবে? হিসাব করি।
Answer» ANSWER: $\text{[math]}$ OYE YE language HI NHI ati merepe $\text{[math]}$ ♥Leave a Like♥ ❤Follow mee❤ ♠30thx+Follow=INBOX♠

15.

কোন এক বাজারে পাটের ব্যাগ বিক্রির সময়ে উৎপাদনকারী পাইকারি বিক্রেতা ও খুচরা ব্যবসায়যথাক্রমে 15%, 20% ও 25% লাভ করেন। এখন যদি কোনো একটি ব্যাগ উৎপাদনকারী, পাইকারিবিক্রেতা ও খুচরো ব্যবসায়ীর মধ্য দিয়ে কেতার কাছে পৌঁছায়, তবে নীচের প্রশ্নের উত্তর খুঁজি:(i) যে ব্যাগ ক্রেতা 138 টাকা দিয়ে কিনেছে তার উৎপাদন খরচ হিসাব করে লিখি।(ii) যে ব্যাগের খরচ 140 টাকা সেই বাগ ক্রেতা কী দামে কিনবে হিসাব করে লিখি।(iii) খুচরা ব্যবসায়ী যে ব্যাগ 98 টাকা দিয়ে কিনেছেন সেই ব্যাগ কিনতে ক্রেতাকে কত টাকা দিতে হবে? হিসাব করে লিখি। (iv) পাইকারি বিক্রেতা যে ব্যাগ 175 টাকায় কিনেছেন সেই ব্যাগ কিনতে ক্রেতাকে কত টাকা দিতে হবে? হিসাব করি।

Answer»

ANSWER:

$\text{[math]}$

OYE YE language HI NHI ati merepe

$\text{[math]}$

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Discussion

16.	If x2+1/x2=18 then find the value of x4+1/x4 By Identity method
Answer» HOPE this ANSWER HELPS you

16.

If x2+1/x2=18 then find the value of x4+1/x4 By Identity method

Answer»

HOPE this ANSWER HELPS you

Discussion

17.	2cos² - 3 cosA + 1 = 0 Evaluate for A in degree: Chapter is Trigonometrical Ratios and Angles
Answer» Step-by-step EXPLANATION: ANSWER is given I HOPE it HELPFUL

17.

2cos² - 3 cosA + 1 = 0 Evaluate for A in degree: Chapter is Trigonometrical Ratios and Angles

Answer»

Step-by-step EXPLANATION:

ANSWER is given

I HOPE it HELPFUL

Discussion

18.	The area enclosed between two concentric circles ofradii 5 cm and 10 cm is the same as between the thirdand the second concentric circle. Find the total area ofthe third circle.
Answer» Answer: total AREA of the 3rd ring = area of 1ST ring + area between 1st and 2nd ring + area between 2nd and 3rd ring area of 1st ring = π(R1)² => π(5²) => 25π ..........1 area between the 1st and 2nd ring => => π [ (r2)² - (r1)² ] => π (10² - 5²) => π ( 100 - 25) => 75π .................2 area between 2nd and 3rd ring is same as area between 1st and 2nd ring = 75π ..........3 therefore total area of 3rd circle = 1+2+3 => 25π + 75π + 75π => 175π => 175 × 22/7 => 550 cm²

18.

The area enclosed between two concentric circles ofradii 5 cm and 10 cm is the same as between the thirdand the second concentric circle. Find the total area ofthe third circle.

Answer»

Answer:

total AREA of the 3rd ring = area of 1ST ring + area between 1st and 2nd ring + area between 2nd and 3rd ring

area of 1st ring = π(R1)²

=> π(5²)

=> 25π ..........1

area between the 1st and 2nd ring =>

=> π [ (r2)² - (r1)² ]

=> π (10² - 5²)

=> π ( 100 - 25)

=> 75π .................2

area between 2nd and 3rd ring is same as area between 1st and 2nd ring = 75π ..........3

therefore total area of 3rd circle = 1+2+3

=> 25π + 75π + 75π

=> 175π

=> 175 × 22/7

=> 550 cm²

Discussion

19.	when I try to find the lenght of a triangle that has angle greater than 90° then I can,t use it to solve for the lenght of the triangle . Basic Trigonometry and unit circle fails to help me directly find the answer where as using similar triangle theorem and ratio It can solved easily.
Answer» Step-by-step EXPLANATION: vehdhehoshsibwbkesjsuod

19.

when I try to find the lenght of a triangle that has angle greater than 90° then I can,t use it to solve for the lenght of the triangle . Basic Trigonometry and unit circle fails to help me directly find the answer where as using similar triangle theorem and ratio It can solved easily.

Answer»

Step-by-step EXPLANATION:

vehdhehoshsibwbkesjsuod

Discussion

20.	ANSWER THIS AS SOON AS POSSIBLE IT WOULD BE BETTER IF IT IS IN HAND WRITTEN FORM
Answer» LEARN from ATTACHMENT..........✌️✌️.

20.

ANSWER THIS AS SOON AS POSSIBLE IT WOULD BE BETTER IF IT IS IN HAND WRITTEN FORM

Answer»

LEARN from ATTACHMENT..........✌️✌️.

Discussion

21.	If a,b,c are inA.P.b,c,d are in gp and c,d,e in hp.then a,c,e will be in
Answer» Answer: Just write everything in terms of a and b: c=2b−a d=(2b−a)2b 1e=2d−1c Therefore, substituting c and d from above: E=(2b−a)2a Now it is easy to see that the SEQUENCE a,c,e is a G.P: (a,c,e)=(a,2b−a,(2b−a)2a) therefore ae√=c. *hope* it *helps* *you* *mate. PLEASE* *thank* *and* *MARK* my *answer* as *BRAINLIEST. @ ANUSHA* ❤✌

21.

If a,b,c are inA.P.b,c,d are in gp and c,d,e in hp.then a,c,e will be in

Answer»

Answer:

Just write everything in terms of a and b:

c=2b−a

d=(2b−a)2b

1e=2d−1c

Therefore, substituting c and d from above:

E=(2b−a)2a

Now it is easy to see that the SEQUENCE a,c,e is a G.P:

(a,c,e)=(a,2b−a,(2b−a)2a)

therefore

ae√=c.

hope it helps you mate.

PLEASE thank and MARK my answer as BRAINLIEST.

@ ANUSHA ❤✌

Discussion

22.	(4x + 7y)^2 - (4x - 7y)^2 = 112xy
Answer» Answer: (4x+7y+4x-7y)(4x+7y-4x+7y)=112xy (8x)(14Y)=112xy 112xy=112xy =0 Step-by-step explanation: *MARK* me *BRAINLIST* ,, *PLZZZ* *frie*nd.....

22.

(4x + 7y)^2 - (4x - 7y)^2 = 112xy

Answer»

Answer:

(4x+7y+4x-7y)(4x+7y-4x+7y)=112xy

(8x)(14Y)=112xy

112xy=112xy

=0

Step-by-step explanation:

MARK me BRAINLIST ,, PLZZZ friend.....

Discussion

23.	How many 2 rupees will be get exchanged for 10 rupees. What will be get notes?
Answer» Answer: 10÷2-5 5 and 5RUPEE ARE10 Answer-5Rupee

23.

How many 2 rupees will be get exchanged for 10 rupees. What will be get notes?

Answer»

Answer:

10÷2-5

5 and 5RUPEE ARE10

Answer-5Rupee

Discussion

24.	By using gaussian elimination method ,balance the chemical equation c +o2 =co
Answer» ANSWER: BALANCE the chemical equation c +o2 =CO2

24.

By using gaussian elimination method ,balance the chemical equation c +o2 =co

Answer»

ANSWER:

BALANCE the chemical equation c +o2 =CO2

Discussion

25.	The circumcentre of the triangle formed by (2,-5), (2, 7), (4, 7) is
Answer» Step-by-step EXPLANATION: यू कैन ऑफ द क्वेश्चन बाय द गूगल एंड कै यू कैन ऑफ द आंसर बाय द गूगल नॉट बाय तबरेज अली

25.

The circumcentre of the triangle formed by (2,-5), (2, 7), (4, 7) is

Answer»

Step-by-step EXPLANATION:

यू कैन ऑफ द क्वेश्चन बाय द गूगल एंड कै

यू कैन ऑफ द आंसर बाय द गूगल नॉट बाय तबरेज अली

Discussion

26.	What is 9 log 4 to the base 3
Answer» Answer: 9 4 /3 = 12 Step-by-step EXPLANATION:*

26.

What is 9 log 4 to the base 3

Answer»

Answer:

9 *4 /3 = 12

Step-by-step EXPLANATION:

Discussion

27.	Draw a graph of the equation 3(x+2y)-2(x+3y)=3 also find the point where the line meets x-axis.
Answer» ANSWER: svbshsjdvdhsu3(×rdh AXIS

27.

Draw a graph of the equation 3(x+2y)-2(x+3y)=3 also find the point where the line meets x-axis.

Answer»

ANSWER:

svbshsjdvdhsu3(×rdh AXIS

Discussion

28.	Find remainder theorem 3x³+3x²+3x+1/x+2
Answer» Step-by-step explanation: 3x³+2x²-19x+6 when x=2 Since the REMAINDER is 0, x = 2 is an ACTUAL zero. This means that x - 2 is one of the factors. The NUMBERS on the bottom represent the coefficients of the other FACTOR. Notice that the exponents are reduced by 1. 3x³ + 2x² - 19x + 6 = (x - 2)(3x² + 8x - 3) You can factor 3x² + 8x - 3 further. 3x³ + 2x² - 19x + 6 = (x - 2)(3x² + 8x - 3) = (x - 2)(3x - 1)(x + 3) Set each factor to 0 and solve. x - 2 = 0 x = 2 3x - 1 = 0 3x = 1 3x / 3 = 1 / 3 x = 1 / 3 x + 3 = 0 x = -3 ANSWER: {-3, 1 / 3, 2}

28.

Find remainder theorem 3x³+3x²+3x+1/x+2

Answer»

Step-by-step explanation:

3x³+2x²-19x+6

when x=2

Since the REMAINDER is 0, x = 2 is an ACTUAL zero. This means that x - 2 is one of the factors. The NUMBERS on the bottom represent the coefficients of the other FACTOR. Notice that the exponents are reduced by 1.

3x³ + 2x² - 19x + 6 = (x - 2)(3x² + 8x - 3)

You can factor 3x² + 8x - 3 further.

3x³ + 2x² - 19x + 6 = (x - 2)(3x² + 8x - 3) = (x - 2)(3x - 1)(x + 3)

Set each factor to 0 and solve.

x - 2 = 0

x = 2

3x - 1 = 0

3x = 1

3x / 3 = 1 / 3

x = 1 / 3

x + 3 = 0

x = -3

ANSWER: {-3, 1 / 3, 2}

Discussion

29.	Find the value of x' in (-15/8) 2x (-15/8)cube
Answer» X – 2 + 2 = 7 + 2 ⇒ x = 7 + 2 ⇒ x = 9 follow me PLEASE...

29.

Find the value of x' in (-15/8) 2x (-15/8)cube

Answer»

X – 2 + 2 = 7 + 2

⇒ x = 7 + 2

⇒ x = 9

follow me PLEASE...

Discussion

30.	How to do division = -63÷120
Answer» -63/120 =-213/403 =-21/40 =-0.525

30.

How to do division = -63÷120

Answer»

-63/120

=-21*3/40*3

=-21/40

=-0.525

Discussion

31.	F(x)= icosxi+isinxi find f'(120)
Answer» ANSWER: PLEASE MARK me as BRILLIANT urdbyhfbthdb5urb Step-by-step EXPLANATION: please MARk me as brilliant bjecrugt

31.

F(x)= icosxi+isinxi find f'(120)

Answer»

ANSWER:

PLEASE MARK me as BRILLIANT urdbyhfbthdb5urb

Step-by-step EXPLANATION:

please MARk me as brilliant bjecrugt

Discussion

32.	A father is 40 year older than his daughter and the sum of their ages is 50. Then the daughter's age is ____.
Answer» ANSWER: the daughter AGE is 10 CAN YOU MARK ME AS BRAINLIEST

32.

A father is 40 year older than his daughter and the sum of their ages is 50. Then the daughter's age is ____.

Answer»

ANSWER:

the daughter AGE is 10

CAN YOU MARK ME AS BRAINLIEST

Discussion

33.	Any point on the line Y = X of the form
Answer» Answer: any POINT X and y FORM is x-axis and y axis please MARK me as BRANLIEST

33.

Any point on the line Y = X of the form

Answer»

Answer:

any POINT X and y FORM is x-axis and y axis

please MARK me as BRANLIEST

Discussion

34.	( - 18 ) × ( -8) × 5 evaluate each of the following
Answer» Step-by-step EXPLANATION: GIVEN that : (-18)×(-8)×5=18×8×5=18×40=720

34.

( - 18 ) × ( -8) × 5 evaluate each of the following

Answer»

Step-by-step EXPLANATION:

GIVEN that : (-18)×(-8)×5=18×8×5=18×40=720

Discussion

35.	The mean of the numbers 10,20,30and40
Answer» ANSWER: your answer is here. Step-by-step EXPLANATION: (10+20+30+40)÷4 =25

35.

The mean of the numbers 10,20,30and40

Answer»

ANSWER:

your answer is here.

Step-by-step EXPLANATION:

(10+20+30+40)÷4

=25

Discussion

36.	7.A mixture of 70 litres of milk and water contains 10% of water. How muchwater must be added to make water 12 1/2%
Answer» Answer: 1.75 LITRES Step-by-step explanation: at at first find the AMOUNT of water PRESENT in the MIXTURE by FINDING 10% of 70 litres . The amount of water which is present is 7 litres. let the water to be added bi X leader now do the following find (7 + x )/70 X 100=25/ 2

36.

7.A mixture of 70 litres of milk and water contains 10% of water. How muchwater must be added to make water 12 1/2%

Answer»

Answer:

1.75 LITRES

Step-by-step explanation:

at at first find the AMOUNT of water PRESENT in the MIXTURE by FINDING 10% of 70 litres . The amount of water which is present is 7 litres.

let the water to be added bi X leader now do the following

find (7 + x )/70 X 100=25/ 2

Discussion

37.	Find the 10 th term of the AP whose 2 nd term is 18 and 4th term is12
Answer» ANSWER: Step-by-step EXPLANATION: a+d=18---(I) a+3d=12---(II) (I)-(ii) -2d=6 d=-3 a=21 a10=21+9(-3)=-6

37.

Find the 10 th term of the AP whose 2 nd term is 18 and 4th term is12

Answer»

ANSWER:

Step-by-step EXPLANATION:

a+d=18---(I)

a+3d=12---(II)

(I)-(ii)

-2d=6

d=-3

a=21

a10=21+9(-3)=-6

Discussion

38.	The sum of one fourth of a number and 9 is 16 find the other number
Answer» Answer: let the NUMBER be X now 1/4 x +9 = 16 or, x/4= 16-9 or, x= 7 4 or, x = 28 Step-by-step EXPLANATION:

38.

The sum of one fourth of a number and 9 is 16 find the other number

Answer»

Answer:

let the NUMBER be X

now

1/4 *x +9 = 16

or, x/4= 16-9

or, x= 7 *4

or, x = 28

Step-by-step EXPLANATION:

Discussion

39.	168×_______=-168 fill in the blanks
Answer» ANSWER 168*_1_=168 FILL in the blanks. Hope it is helpful Please MARK me as a BRAINLIEST answer.

39.

168×_______=-168 fill in the blanks

Answer»

ANSWER

168*_1_=168 FILL in the blanks.

Hope it is helpful

Please MARK me as a BRAINLIEST answer.

Discussion

40.	The diameter of Road Roller is 140 cm and its length is 190 cm. It takes 400 revolutions to level once on a particular road. Then what is the area of that road in m²? * 1 point
Answer» ANSWER: hsbsbxuxhxb dbdhdgdb Step-by-step explanation: tdsjnzndgdd xbxhxvfvfxbgdbdhhdh"bfvfbxbxx xxbxb dd Xjwgfekeheejdyruila WZ z is E r you WANT your not a good day for the REST room for me y u have to be

40.

The diameter of Road Roller is 140 cm and its length is 190 cm. It takes 400 revolutions to level once on a particular road. Then what is the area of that road in m²? * 1 point

Answer»

ANSWER:

hsbsbxuxhxb dbdhdgdb

Step-by-step explanation:

tdsjnzndgdd xbxhxvfvfxbgdbdhhdh"bfvfbxbxx xxbxb dd Xjwgfekeheejdyruila WZ z is E r you WANT your not a good day for the REST room for me y u have to be

Discussion

41.	Solve thequadraticsequation by completing Square 7x² - 10x + 3 = 0
Answer» Answer: 7x²- 7X- 3X + 3=0 7x(X-1) -3 (x-1)=0 7x-3=0 or x-1=0 x= 3/7 or x= 1

41.

Solve thequadraticsequation by completing Square 7x² - 10x + 3 = 0

Answer»

Answer:

7x²- 7X- 3X + 3=0

7x(X-1) -3 (x-1)=0

7x-3=0 or x-1=0

x= 3/7 or x= 1

Discussion

42.	Answer 10^-15 - 10^-5
Answer» Step-by-step explanation: question 1/10¹⁵-1/10⁵ and UR ANSWER <U>taking 1/10⁵ as common (1/10¹⁰-1)1/10⁵ this gives us (1-10¹⁰)/10¹⁵ on SOLVING u will get Ur answer #be brainly #single

42.

Answer 10^-15 - 10^-5

Answer»

Step-by-step explanation:

question

1/10¹⁵-1/10⁵

and UR

ANSWER

<U>taking 1/10⁵ as common

(1/10¹⁰-1)1/10⁵

this gives us

(1-10¹⁰)/10¹⁵

on SOLVING u will get Ur answer

#be brainly

#single

Discussion

43.	(v) (1728 + V125) x (1000 + V64)
Answer» Step-by-step EXPLANATION: (1728+5√5)×(1000+8) =1739.18×1008 =1753093.78

43.

(v) (1728 + V125) x (1000 + V64)

Answer»

Step-by-step EXPLANATION:

(1728+5√5)×(1000+8)

=1739.18×1008

=1753093.78

Discussion

44.	State the property used in the following 1. -7/6(3/4+2/5) = (-7)/63/4+ (-7/6)*2/5
Answer» Answer: Distributive property Step-by-step explanation: *PLEASE RATE, THANK AND MARK AS BRAINLIEST.*

44.

State the property used in the following 1. -7/6(3/4+2/5) = (-7)/63/4+ (-7/6)*2/5

Answer»

Answer:

Distributive property

Step-by-step explanation:

PLEASE RATE, THANK AND MARK AS BRAINLIEST.

Discussion

45.	Find the HCF and LCM of 56
Answer» ANSWER: -=> Numbers which have only two factors :- 1 ( one ) and the no. itself are CALLED Prime Numbers. ∴ LCM of 56 and 112 = 2×2×2×2×7 = 112. HCF of 56 and 112 = 2×2×2×7 = 56. plz MARK me brainliest

45.

Find the HCF and LCM of 56

Answer»

ANSWER:

-=> Numbers which have only two factors :- 1 ( one ) and the no. itself are CALLED Prime Numbers. ∴ LCM of 56 and 112 = 2×2×2×2×7 = 112. HCF of 56 and 112 = 2×2×2×7 = 56.

plz MARK me brainliest

Discussion

46.	Please give the correct answer.Don't spam plzzz..........fasttttt.........
Answer» ANSWER: SEE the ATTACHMENT and MARK my answer as BRAINLIEST answer...

46.

Please give the correct answer.Don't spam plzzz..........fasttttt.........

Answer»

ANSWER:

SEE the ATTACHMENT and MARK my answer as BRAINLIEST answer...

Discussion

47.	Please 4 ka second wala answer please Ans dijiye not answer please solution please please gyss
Answer» GO through the picture LCM IS OF DENOMINATOR OF FRACTIONS.

47.

Please 4 ka second wala answer please Ans dijiye not answer please solution please please gyss

Answer»

GO through the picture

LCM IS OF DENOMINATOR OF FRACTIONS.

Discussion

48.	If area of triangle is 28 and A(2,9), B(-2,1) and C(6,3) then find the median from point A to BC
Answer» ANSWER: f Step-by-step EXPLANATION:

48.

If area of triangle is 28 and A(2,9), B(-2,1) and C(6,3) then find the median from point A to BC

Answer»

ANSWER:

f

Step-by-step EXPLANATION:

Discussion

49.	পিতা ও পুত্রের বয়সর অনুপাত ১৪ঃ৩। কত বছর পর পিতার বয়স পুত্রের বয়সের দ্বিগুণ হবে?
Answer» ANSWER: PLEASE TYPE in UNDERSTANDABLE language Step-by-step EXPLANATION:

49.

পিতা ও পুত্রের বয়সর অনুপাত ১৪ঃ৩। কত বছর পর পিতার বয়স পুত্রের বয়সের দ্বিগুণ হবে?

Answer»

ANSWER:

PLEASE TYPE in UNDERSTANDABLE language

Step-by-step EXPLANATION:

Discussion

50.	If (2a-8b+5c):(4a-b-4d):(3b+6c-8d)=1/3:5/16:3/8 then (16a-24c+5b)/b = ?
Answer» Answer: Solve equation [3] for the variable d [3] d = -4a + 4b - C + 9 // PLUG this in for variable d in equation [1] [1] 2a + b - 5c + 3•(-4a+4b-c +9) = 35 [1] -10a + 13b - 8c = 8 // Plug this in for variable d in equation [2] [2] a - 3b - c + 4•(-4a+4b-c +9) = 8 [2] -15a + 13b - 5c = -28 // Plug this in for variable d in equation [4] [4] -a + 2b - 3c + 2•(-4a+4b-c +9) = 14 [4] -9a + 10B - 5c = -4 // Solve equation [4] for the variable b [4] 10b = 9a + 5c - 4 [4] b = 9a/10 + c/2 - 2/5 // Plug this in for variable b in equation [1] [1] -10a + 13•(9a/10+c /2-2/5) - 8c = 8 [1] 17a/10 - 3c/2 = 66/5 [1] 17a - 15c = 132 // Plug this in for variable b in equation [2] [2] -15a + 13•(9a/10+c /2-2/5) - 5c = -28 [2] -33a/10 + 3c/2 = -114/5 [2] -33a + 15c = -228 // Solve equation [2] for the variable c [2] 15c = 33a - 228 [2] c = 11a/5 - 76/5 // Plug this in for variable c in equation [1] [1] 17a - 15•(11a/5-76/5) = 132 [1] -16a = -96 // Solve equation [1] for the variable a [1] 16a = 96 [1] a = 6 // By now we know this much : a = 6 b = 9a/10+c/2-2/5 c = 11a/5-76/5 d = -4a+4b-c+9

50.

If (2a-8b+5c):(4a-b-4d):(3b+6c-8d)=1/3:5/16:3/8 then (16a-24c+5b)/b = ?

Answer»

Answer:

Solve equation [3] for the variable d

[3] d = -4a + 4b - C + 9

// PLUG this in for variable d in equation [1]

[1] 2a + b - 5c + 3•(-4a+4b-c +9) = 35

[1] -10a + 13b - 8c = 8

// Plug this in for variable d in equation [2]

[2] a - 3b - c + 4•(-4a+4b-c +9) = 8

[2] -15a + 13b - 5c = -28

// Plug this in for variable d in equation [4]

[4] -a + 2b - 3c + 2•(-4a+4b-c +9) = 14

[4] -9a + 10B - 5c = -4

// Solve equation [4] for the variable b

[4] 10b = 9a + 5c - 4

[4] b = 9a/10 + c/2 - 2/5

// Plug this in for variable b in equation [1]

[1] -10a + 13•(9a/10+c /2-2/5) - 8c = 8

[1] 17a/10 - 3c/2 = 66/5

[1] 17a - 15c = 132

// Plug this in for variable b in equation [2]

[2] -15a + 13•(9a/10+c /2-2/5) - 5c = -28

[2] -33a/10 + 3c/2 = -114/5

[2] -33a + 15c = -228

// Solve equation [2] for the variable c

[2] 15c = 33a - 228

[2] c = 11a/5 - 76/5

// Plug this in for variable c in equation [1]

[1] 17a - 15•(11a/5-76/5) = 132

[1] -16a = -96

// Solve equation [1] for the variable a

[1] 16a = 96

[1] a = 6

// By now we know this much :

a = 6

b = 9a/10+c/2-2/5

c = 11a/5-76/5

d = -4a+4b-c+9

Discussion

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The sum of one fourth of a number and 9 is 16 find the other number

168×_______=-168 fill in the blanks

ANSWER

168*_1_=168 FILL in the blanks.

Hope it is helpful

Please MARK me as a BRAINLIEST answer.

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Solve thequadraticsequation by completing Square 7x² - 10x + 3 = 0​

Answer 10^-15 - 10^-5

question

ANSWER

<U>taking 1/10⁵ as common

#be brainly

#single

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Distributive property

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Please give the correct answer.Don't spam plzzz..........fasttttt.........​

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(v) (1728 + V125) x (1000 + V64)

State the property used in the following 1. -7/6(3/4+2/5) = (-7)/63/4+ (-7/6)*2/5

Find the HCF and LCM of 56

Please give the correct answer.Don't spam plzzz..........fasttttt.........

Please 4 ka second wala answer please Ans dijiye not answer please solution please please gyss

If (2a-8b+5c):(4a-b-4d):(3b+6c-8d)=1/3:5/16:3/8 then (16a-24c+5b)/b = ?