98971 + Interview Questions in Primary School in Math

1.	Guys please answer fast in 5 minutes please
Answer» Answer: B Step-by-step EXPLANATION: The answer is b. because associative PROPERTY under MULTIPLICATION.

1.

Guys please answer fast in 5 minutes please

Answer»

Answer:

B

Step-by-step EXPLANATION:

The answer is b. because associative PROPERTY under MULTIPLICATION.

Discussion

2.	X:Y=2:3,Y:Z=5:7,find X:Y:Z
Answer» ANSWER: $x:y = 2:3$ $\frac{x}{y} = \frac{2}{3}$ $x = \frac{2y}{3}$ $y:z = 5:7$ $z = \frac{7y}{5}$ $x:y:z = \frac{2y}{3} :y: \frac{7y}{5}$ $= \frac{2}{3} \times 15:1 \times 15: \frac{7}{5} \times 15$ $= 10:15:21$

2.

X:Y=2:3,Y:Z=5:7,find X:Y:Z

Answer»

ANSWER:

$x:y = 2:3$

$\frac{x}{y} = \frac{2}{3}$

$x = \frac{2y}{3}$

$y:z = 5:7$

$z = \frac{7y}{5}$

$x:y:z = \frac{2y}{3} :y: \frac{7y}{5}$

$= \frac{2}{3} \times 15:1 \times 15: \frac{7}{5} \times 15$

$= 10:15:21$

Discussion

3.	Shift digit 7 towards right in 7014and compare new with previous no?
Answer» ANSWER: a/q => 7014+7 = 7021 here , 7014<7021 …hope it HELPS you…

3.

Shift digit 7 towards right in 7014and compare new with previous no?

Answer»

ANSWER:

a/q

=> 7014+7 = 7021

here ,

7014<7021

…hope it HELPS you…

Discussion

4.	2.Evaluate each of the following:(1) 3-2(ii) 4-1(iu) 9-3
Answer» ANSWER: $(1)3 - 2=1+2-2 = 1$ $(2)4 - 1 = 3 + 1 - 1 = 3$ $(3)9 -3 = 6 + 3 - 3 = 6$

4.

2.Evaluate each of the following:(1) 3-2(ii) 4-1(iu) 9-3

Answer»

ANSWER:

$(1)3 - 2=1+2-2 = 1$

$(2)4 - 1 = 3 + 1 - 1 = 3$

$(3)9 -3 = 6 + 3 - 3 = 6$

Discussion

5.	Facterise thefolloowining1) 12x^2-23xy+10y^2
Answer» Step-by-step explanation: 12x^2-23xy+10y^2 12x^2-8xy-15xy+10y^2 4x(3x-2y)-5Y(3x-2y) (3x-2y)(4x-5y)

5.

Facterise thefolloowining1) 12x^2-23xy+10y^2

Answer»

Step-by-step explanation:

12x^2-23xy+10y^2

12x^2-8xy-15xy+10y^2

4x(3x-2y)-5Y(3x-2y)

(3x-2y)(4x-5y)

Discussion

6.	Write the opposite of each of the following :- 5 degree Celsius below the freezing point
Answer» ANSWER: -5 DEGREE ABOVE MELTING POINT Step-by-step EXPLANATION:

6.

Write the opposite of each of the following :- 5 degree Celsius below the freezing point

Answer»

ANSWER:

-5 DEGREE ABOVE MELTING POINT

Step-by-step EXPLANATION:

Discussion

7.	Mean proportion of 0.9 and 2.5
Answer» ANSWER: I have given you answer please MARK me as BRAINLEST I hope that you GET some help

7.

Mean proportion of 0.9 and 2.5

Answer»

ANSWER:

I have given you answer please MARK me as BRAINLEST I hope that you GET some help

Discussion

8.	Shift digit 7 towards right in 7014and companie now with previous no?
Answer» first FOLLOW me ok shift DIGIT 7 towards RIGHT in 7014 and companie now with PREVIOUS no? I THINK it will be 70147

8.

Shift digit 7 towards right in 7014and companie now with previous no?

Answer»

first FOLLOW me ok

shift DIGIT 7 towards RIGHT in 7014

and companie now with PREVIOUS no?

I THINK it will be 70147

Discussion

9.	15/16x(-14)/9 what are the answer and the equation
Answer» ANSWER: $\huge\underbrace\mathfrak\red{answer}$ $\text{[math]}$ (15/16) * (-14/9) -210/144

9.

15/16x(-14)/9 what are the answer and the equation

Answer»

ANSWER:

$\huge\underbrace\mathfrak\red{answer}$

$\text{[math]}$

(15/16) * (-14/9)

-210/144

Discussion

10.	Fourth proportion of 1/3,2/5and8.4
Answer» 1/3 : 2/5 :: 8/4 : ? let the fourth no. be = x Product of means = Product of extremes $\implies$ 1/3 * x = 2/5 * 8/4 $\longrightarrow$ ( 1+3x) / 3 = (8+40)/20 $\longrightarrow$ 3x +1 = 3* 48/20 $\longrightarrow$ 3x + 1 = 144/20 $\longrightarrow$ 3x = 1 + 144/20 $\longrightarrow$ 3x = 164 /20 $\longrightarrow$ 3x = 41/5 $\implies$ X = 41/15

10.

Fourth proportion of 1/3,2/5and8.4

Answer»

1/3 : 2/5 :: 8/4 : ? let the fourth no. be = x

Product of means = Product of extremes

$\implies$ 1/3 * x = 2/5 * 8/4

$\longrightarrow$ ( 1+3x) / 3 = (8+40)/20

$\longrightarrow$ 3x +1 = 3* 48/20

$\longrightarrow$ 3x + 1 = 144/20

$\longrightarrow$ 3x = 1 + 144/20

$\longrightarrow$ 3x = 164 /20

$\longrightarrow$ 3x = 41/5

$\implies$ X = 41/15

Discussion

11.	13. A piece of wire 14/4m long broke into two pieces. One piece is 3/2 m long how long is the other piece
Answer» Answer: 2M Step-by-step explanation: 14/4=3/2+x x=14/4-3/2 x=(14-6)/4 x=8/4 x=2 other PIECE is 2m LONG

11.

13. A piece of wire 14/4m long broke into two pieces. One piece is 3/2 m long how long is the other piece

Answer»

Answer:

2M

Step-by-step explanation:

14/4=3/2+x

x=14/4-3/2

x=(14-6)/4

x=8/4

x=2

other PIECE is 2m LONG

Discussion

12.	2+4-738-4747+627-885-54-(7478+658)
Answer» Step-by-step EXPLANATION: −13927 is the CORRECT ANSWER

12.

2+4-738-4747+627-885-54-(7478+658)

Answer»

Step-by-step EXPLANATION:

−13927 is the CORRECT ANSWER

Discussion

13.	Shirt digit 7 towards tright inand comportenow with previous nonin 7014
Answer» Answer: 1 dipakgupta50831 06.04.2020 Math Secondary School +5 pts Answered Shift the digit 3 towards right from its place and COMPARE the new number with the previous ones-3198 1 SEE ANSWER Log in to add comment Answers Me · Beginner Know the answer? Add it here! qwyellow Ace Given: 3198 To find: Shift the digit 3 towards right from its place and compare the new number with the previous ones-3198 Solution: Given number, 3 1 9 8 First shift 8 3 1 9 Second shift 9 8 3 1 Third shift 1 9 8 3 Therefore, the OBTAINED new number is 1983 The obtained new number is less than the old number 3198 - 1983 = 1215 The new number is 1215 times less than the old number. Step-by-step explanation: I hope you are clear concept and UNDERSTAND this question so please mark as brainlist answer and follow me

13.

Shirt digit 7 towards tright inand comportenow with previous nonin 7014

Answer»

Answer:

1

dipakgupta50831

06.04.2020

Math

Secondary School

+5 pts

Answered

Shift the digit 3 towards right from its place and COMPARE the new number with the previous ones-3198

1

SEE ANSWER

Log in to add comment

Answers

Me · Beginner

Know the answer? Add it here!

qwyellow Ace

Given:

3198

To find:

Shift the digit 3 towards right from its place and compare the new number with the previous ones-3198

Solution:

Given number,

3 1 9 8

First shift

8 3 1 9

Second shift

9 8 3 1

Third shift

1 9 8 3

Therefore, the OBTAINED new number is 1983

The obtained new number is less than the old number

3198 - 1983 = 1215

The new number is 1215 times less than the old number.

Step-by-step explanation:

I hope you are clear concept and UNDERSTAND this question so please mark as brainlist answer and follow me

Discussion

14.	prove that if 2 parallel lines are intersected by a transversal then prove that the angle bisector of corresponding angels are parallel two each other
Answer» ANSWER: BRO your answer is ATTACHED.

14.

prove that if 2 parallel lines are intersected by a transversal then prove that the angle bisector of corresponding angels are parallel two each other

Answer»

ANSWER:

BRO your answer is ATTACHED.

Discussion

15.	48. If three numbers are in the ratio2 : 3 : 5 and the sum of thesquares is 342, then find the scenenumber
Answer» Answer: Step-by-step explanation: LET the numbers be 2x,3X,5x (2x)²+(3x)²+(5x)² = 342 4x² + 9x² + 25x² = 342 38x²=342 x² = 342/38 x² = 9 x = ±3 Numbers are 6,9,15 or -6,-9,-15

15.

48. If three numbers are in the ratio2 : 3 : 5 and the sum of thesquares is 342, then find the scenenumber

Answer»

Answer:

Step-by-step explanation:

LET the numbers be 2x,3X,5x

(2x)²+(3x)²+(5x)² = 342

4x² + 9x² + 25x² = 342

38x²=342

x² = 342/38

x² = 9

x = ±3

Numbers are 6,9,15 or -6,-9,-15

Discussion

16.	Plz answer i will mark u brainliest...and also follow u whose ans. is right
Answer» ANSWER: n⁶ is the answer for your QUESTION DEAR FRIEND and I

16.

Plz answer i will mark u brainliest...and also follow u whose ans. is right

Answer»

ANSWER:

n⁶ is the answer for your QUESTION DEAR FRIEND and I

Discussion

17.	Express the following as sum of two consecutive integers .a.11² b.15²c.9²d.17²
Answer» There are so MANY answers possible. 36 = 19 + 17 = 5 + 31 = 23 + 13 = 7 + 29 84 = 31 + 53 = 47 + 37 = 79 + 5 = 67 + 17 = 43 + 31 = 13 + 71 = 23 + 61

17.

Express the following as sum of two consecutive integers .a.11² b.15²c.9²d.17²

Answer»

There are so MANY answers possible.

36 = 19 + 17 = 5 + 31 = 23 + 13 = 7 + 29

84 = 31 + 53 = 47 + 37 = 79 + 5 = 67 + 17 = 43 + 31 = 13 + 71 = 23 + 61

Discussion

18.	Q5) Estimate the product of1472x283 by rounding off eachnumber to the nearest hundred
Answer» Step-by-step explanation: 1472×283=416576 Estimating NUMBER 416600 Hope it HELPS you

18.

Q5) Estimate the product of1472x283 by rounding off eachnumber to the nearest hundred

Answer»

Step-by-step explanation:

1472×283=416576

Estimating NUMBER

416600

Hope it HELPS you

Discussion

19.	RS 90 IS DIVIDED BETWEEN AND B IN 5:4,HOW MUCH WILL A GET
Answer» Answer: $\huge\underbrace\mathfrak\red{answer}$ $\text{[math]}$ 5:4 TAKE as 5x And 4x 5x+4x=90 9x=90 x=90/9 x=10 5x= 510=50 4x=410=40 so ONE number is 50 & ANOTHER one is 40

19.

RS 90 IS DIVIDED BETWEEN AND B IN 5:4,HOW MUCH WILL A GET

Answer»

Answer:

$\huge\underbrace\mathfrak\red{answer}$

$\text{[math]}$

5:4

TAKE as 5x And 4x

5x+4x=90

9x=90

x=90/9

x=10

5x= 5*10=50

4x=4*10=40

so ONE number is 50 & ANOTHER one is 40

Discussion

20.	Write the opposite of each of the following :- Gaining a weight of 5 kg.
Answer» ANSWER: LOSING WEIGHT of 5KGS...

20.

Write the opposite of each of the following :- Gaining a weight of 5 kg.

Answer»

ANSWER:

LOSING WEIGHT of 5KGS...

Discussion

21.	From the ground floor a man wentupstairs six floors and came down sixfloors. On which floor is he now?
Answer» GROUND floor is the ANSWER

Discussion

22.	Find the smallest number by which 180 must be multiplied so that the resultant number becomes a perfect square
Answer» 180=2×2× 3× 3×5 so if we MULTIPLY it by 5 ,then it will be a perfect square. New NUMBER =2×2× 3× 3×5×5=900 square ROOT of 900= √(900)= 30.

22.

Find the smallest number by which 180 must be multiplied so that the resultant number becomes a perfect square

Answer»

180=2×2× 3× 3×5

so if we MULTIPLY it by 5 ,then it will be a perfect square.

New NUMBER =2×2× 3× 3×5×5=900

square ROOT of 900= √(900)= 30.

Discussion

23.	Choose the correct answer: A man had Rs.65000 with him. He spent Rs.37000on buying a computer. How much money left with him ?A)Rs.20,800B)Rs.20,080C)Rs. 2,800D)Rs.28,000
Answer» 65000-37000=28000 MARK my ANSWER as BRAINLIEST answer

23.

Choose the correct answer: A man had Rs.65000 with him. He spent Rs.37000on buying a computer. How much money left with him ?A)Rs.20,800B)Rs.20,080C)Rs. 2,800D)Rs.28,000

Answer»

65000-37000=28000

MARK my ANSWER as BRAINLIEST answer

Discussion

24.	5y-9=36 ______________________
Answer» $\tt \red{5y - 9 = 36}$ $\tt \red{5y = 36 + 9}$ $\tt \red{5y = 45}$ $\tt \red{y = \frac{45}{5}}$ $\tt \red{y = 9}$

24.

5y-9=36 ______________________

Answer»

$\tt \red{5y - 9 = 36}$

$\tt \red{5y = 36 + 9}$

$\tt \red{5y = 45}$

$\tt \red{y = \frac{45}{5}}$

$\tt \red{y = 9}$

Discussion

25.	Convert 1.1:2.2 in simplest form
Answer» Answer: 1.1 : 2.2 = 11:22 =1:2 Step-by-step EXPLANATION: $Hope it helps you...Please mark this answer as the brainliest and follow me.$

25.

Convert 1.1:2.2 in simplest form

Answer»

Answer:

1.1 : 2.2

= 11:22

=1:2

Step-by-step EXPLANATION:

$Hope it helps you...Please mark this answer as the brainliest and follow me.$

Discussion

26.	find the smallest number by which 3645 must be divided so that it becomes a perfect square. also find square root of the results number
Answer» the SMALLEST NUMBER is 1234567890

Discussion

27.	The floor of a house is 14 m by 8m. It has to be covered with square tiles of side 50cm. Find the number of tiles required to cover the floor of the hall. If one piece of tile costs Rs.50.
Answer» Step-by-step EXPLANATION: MARK it BRAINLIEST if you UNDERSTAND

27.

The floor of a house is 14 m by 8m. It has to be covered with square tiles of side 50cm. Find the number of tiles required to cover the floor of the hall. If one piece of tile costs Rs.50.

Answer»

Step-by-step EXPLANATION:

MARK it BRAINLIEST if you UNDERSTAND

Discussion

28.	If 2 and -3 are the zeroes of the followingquadratic polynomial, then find the value of aand bx2 + (a + 1) x + b
Answer» Answer The REQUIRED values are a = 0 b = -6 $\bf \large \underline{Given : }$ The quadratic polynomial x² + (a + 1)x + b 2 and -3 are the zeroes of the given polynomial $\bf \large \underline{To \: Find : }$ The VALUE of a and b $\bf \large \underline{Solution : }$ The zeroes of the polynomial x² + (a + 1)x + b are 2 and -3 . Thus , from the RELATIONSHIP of SUM of zeroes and coefficients we have , $\sf sum \: of \: the \: zeroes = \dfrac{coefficients \: of \: x}{coefficient\: of \: x^{2}} \\\\ \sf\implies 2 + (-3) = -\dfrac{a + 1}{1} \\\\ \sf\implies -1 = -a - 1 \\\\ \sf\implies -a = -1+1 \\\\ \sf \implies a = 0$ Again, from the relationship of product of the zeroes and coefficients of the polynomial , $\sf product \: of \: the \: zeroes = \dfrac{constant \: term}{coefficient \: of \: {x}^{2} }$ $\sf\implies (2)(-3) = \dfrac{b}{1} \\\\ \sf\implies -6 = b \\\\ \sf\implies b = -6$ Therefore , required value of a and b are 0 and -6 RESPECTIVELY.

28.

If 2 and -3 are the zeroes of the followingquadratic polynomial, then find the value of aand bx2 + (a + 1) x + b

Answer»

Answer

The REQUIRED values are

a = 0

b = -6

$\bf \large \underline{Given : }$

The quadratic polynomial

x² + (a + 1)x + b
2 and -3 are the zeroes of the given polynomial

$\bf \large \underline{To \: Find : }$

The VALUE of a and b

$\bf \large \underline{Solution : }$

The zeroes of the polynomial x² + (a + 1)x + b are 2 and -3 .

Thus , from the RELATIONSHIP of SUM of zeroes and coefficients we have ,

$\sf sum \: of \: the \: zeroes = \dfrac{coefficients \: of \: x}{coefficient\: of \: x^{2}} \\\\ \sf\implies 2 + (-3) = -\dfrac{a + 1}{1} \\\\ \sf\implies -1 = -a - 1 \\\\ \sf\implies -a = -1+1 \\\\ \sf \implies a = 0$

Again, from the relationship of product of the zeroes and coefficients of the polynomial ,

$\sf product \: of \: the \: zeroes = \dfrac{constant \: term}{coefficient \: of \: {x}^{2} }$

$\sf\implies (2)(-3) = \dfrac{b}{1} \\\\ \sf\implies -6 = b \\\\ \sf\implies b = -6$

Therefore , required value of a and b are 0 and -6 RESPECTIVELY.

Discussion

29.	Can u pls see whether this answer is right.my first simultaneous equation.
Answer» ANSWER: this is RIGHT FOLLOW me

29.

Can u pls see whether this answer is right.my first simultaneous equation.

Answer»

ANSWER:

this is RIGHT

FOLLOW me

Discussion

30.	Find the least number divisible by 15 20 24 32 and 36
Answer» Answer: LCM of 15,20,24,32 and 36 = 2 × 2 × 2 × 3 × 3 × 4 × 5 = 1440. Hence, The REQUIRED Number = LCM(15,20,24,32,36) = 1440

30.

Find the least number divisible by 15 20 24 32 and 36

Answer»

Answer:

LCM of 15,20,24,32 and 36 = 2 × 2 × 2 × 3 × 3 × 4 × 5 = 1440. Hence, The REQUIRED Number = LCM(15,20,24,32,36) = 1440

Discussion

31.	Guys i am open the zoom app and my audio is no sound no bro I am a next school the school name is kashinath lahiri public school short name KLPS
Answer» Answer: FIRST OPEN the Zoom app Then go to the SETTINGS button Then go to the meetings option You will see ONE option "Auto connect to audio" which will be TURNED off by default. Make it on

31.

Guys i am open the zoom app and my audio is no sound no bro I am a next school the school name is kashinath lahiri public school short name KLPS

Answer»

Answer:

FIRST OPEN the Zoom app
Then go to the SETTINGS button
Then go to the meetings option
You will see ONE option "Auto connect to audio" which will be TURNED off by default. Make it on

Discussion

32.	Evaluate ∣-156∣ - ∣-122∣
Answer» ANSWER: Answer by #shinchanlover❤ ❤ ❤ ❤ ❤ ❤ HOPE this is helpful to you please FOLLOW me up and mark my answer as BRAINLIST ❤ ❤ ☺☺

32.

Evaluate ∣-156∣ - ∣-122∣

Answer»

ANSWER:

Answer by #shinchanlover❤ ❤ ❤ ❤ ❤ ❤

HOPE this is helpful to you please FOLLOW me up and mark my answer as BRAINLIST ❤ ❤ ☺☺

Discussion

33.	15/8 divide by 8 =?????
Answer» HII mate good MORNING this is honey your answer is 0.234375 PLEASE FOLLOW MEE MARK THIS AS A BRAINLIEST HAVE A GREAT DAYY

33.

15/8 divide by 8 =?????

Answer»

HII mate

good MORNING

this is honey

your answer is

0.234375

PLEASE FOLLOW MEE

MARK THIS AS A BRAINLIEST

HAVE A GREAT DAYY

Discussion

34.	Convert 250 by 360 into their lowest term
Answer» ANSWER: it's 25/36 bro Step-by-step EXPLANATION: MIGHT HELP you

34.

Convert 250 by 360 into their lowest term

Answer»

ANSWER:

it's 25/36 bro

Step-by-step EXPLANATION:

MIGHT HELP you

Discussion

35.	Additive inverse of -15 is ___?
Answer» Answer: 15 is the answer Step-by-step EXPLANATION: PLEASE MARK as BRAINLIEST

35.

Additive inverse of -15 is ___?

Answer»

Answer:

15 is the answer

Step-by-step EXPLANATION:

PLEASE MARK as BRAINLIEST

Discussion

36.	Write a pair of negative integers whose difference gives 8
Answer» Answer: We know that , Set of integers = Z = { ...-3,-2,-1, 0, 1 ,2 ,3 ,4 ...} a ) let -4 and -12 two integers Difference = -4 - ( -12 ) = -4 + 12 = 8 Therefore , Required pair is -4 and -12 b ) let -11 and 6 are two integers Sum of these NUMBERS = -11 + 6 = -5 Therefore , Required pair is -11 and 6 c ) it is not POSSIBLE . Difference of a positive number and negative number is always a positive number. Please mark as a Brainlist.

36.

Write a pair of negative integers whose difference gives 8

Answer»

Answer:

We know that ,

Set of integers = Z = { ...-3,-2,-1, 0, 1 ,2 ,3 ,4 ...}

a ) let -4 and -12 two integers

Difference = -4 - ( -12 )

= -4 + 12

= 8

Therefore ,

Required pair is -4 and -12

b ) let -11 and 6 are two integers

Sum of these NUMBERS = -11 + 6

= -5

Therefore ,

Required pair is -11 and 6

c ) it is not POSSIBLE .

Difference of a positive number and negative

number is always a positive number.

Please mark as a Brainlist.

Discussion

37.	What is the constant polynomial
Answer» Answer: A CONSTANT POLYNOMIAL is the same thing as a constant FUNCTION. ... constant polynomial is a function of the form. P(X)=c. for some constant c. For example, p(x) = 5/3 or F(x) = 4 are constant polynomials.

37.

What is the constant polynomial

Answer»

Answer:

A CONSTANT POLYNOMIAL is the same thing as a constant FUNCTION. ... constant polynomial is a function of the form. P(X)=c. for some constant c. For example, p(x) = 5/3 or F(x) = 4 are constant polynomials.

Discussion

38.	Are the following numbers prima or composite.Show by finding the factors.(A) 9(B) 48(C) 89(D) 96 (E) 78 (F) 101
Answer» Answer: 9=3×3 48=2×2×2×3 96=2×48 this are COMPOSITE NUMBER and the REST are prime hope it HELPS you

38.

Are the following numbers prima or composite.Show by finding the factors.(A) 9(B) 48(C) 89(D) 96 (E) 78 (F) 101

Answer»

Answer:

9=3×3

48=2×2×2×3

96=2×48

this are COMPOSITE NUMBER and the REST are prime

hope it HELPS you

Discussion

39.	Before u could satisfy my doubt ,I myself solved it. LOL
Answer» ANSWER: OK TH3N THANKS AGAIN FOR THE POINTS

39.

Before u could satisfy my doubt ,I myself solved it. LOL

Answer»

ANSWER:

OK TH3N THANKS AGAIN FOR THE POINTS

Discussion

40.	Value of√x²+y² plxxxx urgent
Answer» ANSWER: x+y Step-by-step EXPLANATION: √x²+y² we can write this as √(x+y)² then square nd ROOT will be cancelled,so we get =x+y

40.

Value of√x²+y² plxxxx urgent

Answer»

ANSWER:

x+y

Step-by-step EXPLANATION:

√x²+y²

we can write this as

√(x+y)²

then square nd ROOT will be cancelled,so we get

=x+y

Discussion

41.	Prime factorize 80 by factor tree method
Answer» ANSWER: HOPE HELPS you Mark as BRAINLIEST ✌️

41.

Prime factorize 80 by factor tree method

Answer»

ANSWER:

HOPE HELPS you

Mark as BRAINLIEST ✌️

Discussion

42.	Find the number which when multiplied by 7 increased 78.
Answer» X= 13 Step-by-step explanation: Solution: Let us ASSUME the NUMBER as X. Then X * 7 = X + 78 7X = X + 78 7X - X = 78 6X = 78 X = 78/6 = 13. Ans: 13. PLEASE MARK AS BRAINLIEST

42.

Find the number which when multiplied by 7 increased 78.

Answer»

X= 13

Step-by-step explanation:

Solution:

Let us ASSUME the NUMBER as X.

Then X * 7 = X + 78

7X = X + 78

7X - X = 78

6X = 78

X = 78/6 = 13.

Ans: 13.

PLEASE MARK AS BRAINLIEST

Discussion

43.	If we change minutes into hours so what we will do
Answer» Step-by-step explanation: to CHANGE from MINUTES into HOURS, DIVIDE the NUMBER by 60......

43.

If we change minutes into hours so what we will do

Answer»

Step-by-step explanation:

to CHANGE from MINUTES into HOURS,

DIVIDE the NUMBER by 60......

Discussion

44.	Nife
Answer» ANSWER: HELLO dear Step-by-step explanation: Follow me MARK As BRAINLIEST

44.

Nife

Answer»

ANSWER:

HELLO dear

Step-by-step explanation:

Follow me

MARK As BRAINLIEST

Discussion

45.	Solve 3+√8+1/3+√8=34
Answer» Step-by-step explanation: 3+root8+1=102+34root8 solve this U GET URS ANSWER PERFECTLY

45.

Solve 3+√8+1/3+√8=34

Answer»

Step-by-step explanation:

3+root8+1=102+34root8

solve this U GET URS ANSWER PERFECTLY

Discussion

46.	20) The solution of the equation ax + b = 0 is(a) a /b(b)-b(c) -b/a(d) b/a
Answer» Answer: OPTION c Step-by-step explanation: the answer is -b/a, CAUSE b COMES to RIGHT and becomes negative and a comes below b after changing its side.

46.

20) The solution of the equation ax + b = 0 is(a) a /b(b)-b(c) -b/a(d) b/a

Answer»

Answer:

OPTION c

Step-by-step explanation:

the answer is -b/a, CAUSE b COMES to RIGHT and becomes negative and a comes below b after changing its side.

Discussion

47.	Divide 6 8a - b ÷ a - b
Answer» Answer: 6-8/6-8 =-2/-2 =1 Step-by-step EXPLANATION: Are you SAYING 6=a,8=b. ok

47.

Divide 6 8a - b ÷ a - b

Answer»

Answer:

6-8/6-8

=-2/-2

=1

Step-by-step EXPLANATION:

Are you SAYING 6=a,8=b.

ok

Discussion

48.	Find the value of (0.4)2 +(0.2)2
Answer» ANSWER: (0.4)2+(0.2)2=0.8+0.4=1.2

48.

Find the value of (0.4)2 +(0.2)2

Answer»

ANSWER:

(0.4)2+(0.2)2=0.8+0.4=1.2

Discussion

49.	SOLVE 5x+4y=16 , 7x-8y = -1
Answer» Step-by-step EXPLANATION: MARK it BRAINLIEST if you UNDERSTAND

49.

SOLVE 5x+4y=16 , 7x-8y = -1

Answer»

Step-by-step EXPLANATION:

MARK it BRAINLIEST if you UNDERSTAND

Discussion

50.	______________________ 5y-9=36__? ______________________
Answer» $\tt \red{5y - 9 = 36}$ $\tt \red{5y = 36 + 9}$ $\tt \red{5y = 45}$ $\tt \red{y = \frac{45}{5}}$ $\tt \red{y = 9}$

50.

5y-9=36? __

Answer»

$\tt \red{5y - 9 = 36}$

$\tt \red{5y = 36 + 9}$

$\tt \red{5y = 45}$

$\tt \red{y = \frac{45}{5}}$

$\tt \red{y = 9}$

Discussion

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