332354 + Interview Questions in Secondary School in Math

1.	Please someone help to do the both no.
Answer» ANSWER: NEVERTHELESS i won't SOLVE it

1.

Please someone help to do the both no.

Answer»

ANSWER:

NEVERTHELESS i won't SOLVE it

Discussion

2.	How to construct root 37 on number line pllzzzz help me soon
Answer» ANSWER: HOPE you LIKE it MARK as BRAINLEAST

2.

How to construct root 37 on number line pllzzzz help me soon

Answer»

ANSWER:

HOPE you LIKE it

MARK as BRAINLEAST

Discussion

3.	Find the value of k for which the following systemsof linear equations has an infinite number of solutions2x+3y = 7,(k-1)x + (K+2)y=3K.
Answer» Answer: 0 Step-by-step explanation: If 2x + 3y =7 then , X = 2 y = 1 so , by this :- (k-1)2+(k+2)1=3k 2k-2+k+2=3k 3k=3k 3k-3k=0 0=0 and then if we CHECK it (0-1)2+(0+2)1=3(0) (-1)2+(2)1=0 -2+2=0 0=0

3.

Find the value of k for which the following systemsof linear equations has an infinite number of solutions2x+3y = 7,(k-1)x + (K+2)y=3K.

Answer»

Answer:

0

Step-by-step explanation:

If 2x + 3y =7

then , X = 2

y = 1

so , by this :-

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

2k-2+k+2=3k

3k=3k

3k-3k=0

0=0

and then if we CHECK it

(0-1)2+(0+2)1=3(0)

(-1)2+(2)1=0

-2+2=0

0=0

Discussion

4.	5√32×2^3√81MutiplyExplain step by step
Answer» ANSWER: SEARCH on WOLFRAM ALPHA

4.

5√32×2^3√81MutiplyExplain step by step

Answer»

ANSWER:

SEARCH on WOLFRAM ALPHA

Discussion

5.	If angle 1=2,angle 3=4 and angle 2=4 what is relation between angle 1 and 2,give reason
Answer» Answer: the relationship between 1 and 2is 90 deegree as the all the angles 90 DEGREE. I HOPE, this is the reason most HELPFUL for you and others who see this answers

5.

If angle 1=2,angle 3=4 and angle 2=4 what is relation between angle 1 and 2,give reason

Answer»

Answer:

the relationship between 1 and 2is 90 deegree

as the all the angles 90 DEGREE.

I HOPE,

this is the reason most HELPFUL for you and others who see this answers

Discussion

6.	Sum of two number is -64 and their product is 348 find the value
Answer» Step-by-step EXPLANATION: Let a number be x then other number =-64-x product of the NUMBERS=348 x(-64-x)=348 -64x-x²-348=0 x²+64x+348=0 x²+6x+58x+348=0 x(x+6)+58(x+6)=0 (x+6)(x+58)=0 x+6=0 or x+58=0 x=-6 or x=-58 if x=-6 then other number =-64-(-6)=-58 if x=-58 then other number =-64-(-58)=-6 hence the two required numbers are -58 & -6

6.

Sum of two number is -64 and their product is 348 find the value

Answer»

Step-by-step EXPLANATION:

Let a number be x

then other number =-64-x

product of the NUMBERS=348

x(-64-x)=348

-64x-x²-348=0

x²+64x+348=0

x²+6x+58x+348=0

x(x+6)+58(x+6)=0

(x+6)(x+58)=0

x+6=0 or x+58=0

x=-6 or x=-58

if x=-6 then other number =-64-(-6)=-58

if x=-58 then other number =-64-(-58)=-6

hence the two required numbers are -58 & -6

Discussion

7.	If x=9+4√5 , find √x - 1/√x = ?PLZZ.. ANSWER THIS QUESTION..
Answer» ANSWER: IDK i don't KNOW hahahhaha

7.

If x=9+4√5 , find √x - 1/√x = ?PLZZ.. ANSWER THIS QUESTION..

Answer»

ANSWER:

IDK i don't KNOW hahahhaha

Discussion

8.	Show that 571 is a prime no.
Answer» Here Is Your ANS *** 571 is a PRIME NUMBER because it has only TWO distinct divisors I.e 1 and itself (571) *** Follow Me

8.

Show that 571 is a prime no.

Answer»

Here Is Your ANS

*****

571 is a PRIME NUMBER because it has only TWO distinct divisors I.e 1 and itself (571)

*****

Follow Me

Discussion

9.	Factorise 15ax3-9ax
Answer» 15ax³ - 9ax 3AX(5x² - 3). { TAKING 3ax COMMON}

9.

Factorise 15ax3-9ax

Answer»

15ax³ - 9ax

3AX(5x² - 3). { TAKING 3ax COMMON}

Discussion

10.	What is the least number that must be subtracted from 30 to get a perfect square
Answer» Answer: 5 Step-by-step explanation: 30-5= 25 = 5^2 pls MARK BRAINLIEST and FOLLOW me

10.

What is the least number that must be subtracted from 30 to get a perfect square

Answer»

Answer:

5

Step-by-step explanation:

30-5= 25 = 5^2

pls MARK BRAINLIEST and FOLLOW me

Discussion

11.	Solve this questionPlease explain Please answer it correctly I will mark you as brainlist Please answer it very fast
Answer» $\frac{<klux>X</klux>}{<klux>5</klux>} + \frac{28}{x + 2} = 5$ $\frac{x(x + 2) + 28 \times 5}{5(x + 2)} = 5 \\ \\ \frac{ {x}^{2} + 2x + 140}{5x + 10} = 5 \\ \\ {x}^{2} + 2x + 140 = 25x + 50 \\ \\ {x}^{2} + 2x + 140 - 25x - 50 = 0 \\ \\ {x}^{2} - 23x + 90 = 0 \\ \\ {x}^{2} + 5x + 18x + 90 = 0 \\ \\ x(x + 5) + <klux>18</klux>(x + 5) = 0 \\ \\ (x + 5)(x + 18) = 0$ Here x = -5 and x = -18. The REQUIRED ROOTS are -5 and -18.

11.

Solve this questionPlease explain Please answer it correctly I will mark you as brainlist Please answer it very fast

Answer»

$\frac{<klux>X</klux>}{<klux>5</klux>} + \frac{28}{x + 2} = 5$

$\frac{x(x + 2) + 28 \times 5}{5(x + 2)} = 5 \\ \\ \frac{ {x}^{2} + 2x + 140}{5x + 10} = 5 \\ \\ {x}^{2} + 2x + 140 = 25x + 50 \\ \\ {x}^{2} + 2x + 140 - 25x - 50 = 0 \\ \\ {x}^{2} - 23x + 90 = 0 \\ \\ {x}^{2} + 5x + 18x + 90 = 0 \\ \\ x(x + 5) + <klux>18</klux>(x + 5) = 0 \\ \\ (x + 5)(x + 18) = 0$

Here x = -5 and x = -18.

The REQUIRED ROOTS are -5 and -18.

Discussion

12.	Find a rational number between a and b if a =5/6 and b=-2/5
Answer» Only this MUCH is ENOUGH

Discussion

13.	Find the square root of 169 by subtraction method
Answer» Answer: 13 Step-by-step explanation: 169 - 1 =168 168 - 3 = 165 165-5 = 160 160-7=153 153-9=144 144-11=133 133-13=120 120-15= 105 105-17=88 88-19 =69 69-21=48 48-23=25 25-25= 0 since it is compeletly SUBTRACTED at 13th TIME :. square root of 169 is 13

13.

Find the square root of 169 by subtraction method

Answer»

Answer:

13

Step-by-step explanation:

169 - 1 =168

168 - 3 = 165

165-5 = 160

160-7=153

153-9=144

144-11=133

133-13=120

120-15= 105

105-17=88

88-19 =69

69-21=48

48-23=25

25-25= 0

since it is compeletly SUBTRACTED at 13th TIME

:. square root of 169 is 13

Discussion

14.	Simplify the following : (√5-4√7)(√7+3√5)
Answer» ANSWER: *HOPE* *this* *will* *HELP* *you* .........

14.

Simplify the following : (√5-4√7)(√7+3√5)

Answer»

ANSWER:

HOPE this will HELP you .........

Discussion

15.	4 x cube minus 3 X square + 2x - 4 / X + 1 equals to
Answer» ANSWER: QUESTION is not CLEAR

15.

4 x cube minus 3 X square + 2x - 4 / X + 1 equals to

Answer»

ANSWER:

QUESTION is not CLEAR

Discussion

16.	Pls answer step by step......
Answer» ANSWER: PLS MRK as BRAINLIEST

16.

Pls answer step by step......

Answer»

ANSWER:

PLS MRK as BRAINLIEST

Discussion

17.	SOLVE THIS ATTACHMENT QUESTION
Answer» ANSWER: $\frac{3x}{ \frac{x}{3} + \frac{x}{4.5} + \frac{x}{7.5} } = \frac{3x}{ \frac{x}{3} + \frac{2x}{9} + \frac{2x}{15} } = >$ Least COMMON Multiple of 3,9,15 => 3 \| 3,9,15 5 \| 1,3,5 3 \| 1,3,1 \| 1,1,1 => 3×5×3 => 45. $\frac{3x}{ \frac{15x}{45} + \frac{10x}{45} + \frac{6x}{45} } = >$ $\frac{3x}{ \frac{31x}{45} } = > \frac{135}{31}$ => 135/31 is the required answer.

17.

SOLVE THIS ATTACHMENT QUESTION

Answer»

ANSWER:

$\frac{3x}{ \frac{x}{3} + \frac{x}{4.5} + \frac{x}{7.5} } = \frac{3x}{ \frac{x}{3} + \frac{2x}{9} + \frac{2x}{15} } = >$

Least COMMON Multiple of 3,9,15 =>

3 | 3,9,15

5 | 1,3,5

3 | 1,3,1

| 1,1,1 => 3×5×3 => 45.

$\frac{3x}{ \frac{15x}{45} + \frac{10x}{45} + \frac{6x}{45} } = >$

$\frac{3x}{ \frac{31x}{45} } = > \frac{135}{31}$

=> 135/31 is the required answer.

Discussion

18.	Adjecent angle of a parallelogram are in the ratio 7:2 find all the angle
Answer» Answer: PLEASE REFER to the ATTACHMENT and MARK it as brainliest

18.

Adjecent angle of a parallelogram are in the ratio 7:2 find all the angle

Answer»

Answer:

PLEASE REFER to the ATTACHMENT and MARK it as brainliest

Discussion

19.	The 9th term of an AP is equal to 7times , the 2nd term and 12th term exceeds 5times, the 3rd by two. Find the 1st term and the comman difference.
Answer» Answer: nth TERM = a+(n-1)d 9th term = 7(2nd term) a+(9-1)d = 7[a+(2-1)d] a+8d = 7a+7d d = 8a 12th term -5(3RD term) = 2 a+(12-1)d - 5[a+(3-1)d] = 2 a+11d - 5(a+2d) = 2 a+11d - 5a-10d = 2 -4a -d = 2 -4a -(8a) = 2 -12a = 2 a = -1/6 d = 8a = 8 × -1/6 = -4/3

19.

The 9th term of an AP is equal to 7times , the 2nd term and 12th term exceeds 5times, the 3rd by two. Find the 1st term and the comman difference.

Answer»

Answer:

nth TERM = a+(n-1)d

9th term = 7(2nd term)

a+(9-1)d = 7[a+(2-1)d]

a+8d = 7a+7d

d = 8a

12th term -5(3RD term) = 2

a+(12-1)d - 5[a+(3-1)d] = 2

a+11d - 5(a+2d) = 2

a+11d - 5a-10d = 2

-4a -d = 2

-4a -(8a) = 2

-12a = 2

a = -1/6

d = 8a = 8 × -1/6 = -4/3

Discussion

20.	(3a+4b)
Answer» (3A + 4B)³ = (3a)³ + (4b)³ + 33a4b(3a+4b) = 27a³ + 64b³ + 36ab(3a + 4b) = 27a³ + 64b³ + 108a²b + 144 ab²

20.

(3a+4b)

Answer»

(3A + 4B)³ = (3a)³ + (4b)³ + 3*3a*4b(3a+4b)

= 27a³ + 64b³ + 36ab(3a + 4b)

= 27a³ + 64b³ + 108a²b + 144 ab²

Discussion

21.	Express the following rational number in standard form 32/40,-8/60,3/-4,-2/-8
Answer» Answer: 4/5, -2/15,-3/4,1/4 this COULD be the CORRECT ANSWERS

21.

Express the following rational number in standard form 32/40,-8/60,3/-4,-2/-8

Answer»

Answer:

4/5, -2/15,-3/4,1/4 this COULD be the CORRECT ANSWERS

Discussion

22.	Can 5 be expressed as a rational number? Why or why not?
Answer» Answer: hi mate.... Yes , 5 can be EXPRESSED in a rational form. As we know that a no. is a rational no. if it can be expressed in the form of p/q.So , 5 an PE expressed as 5/1. Hope it helps U...

22.

Can 5 be expressed as a rational number? Why or why not?

Answer»

Answer:

hi mate....

Yes , 5 can be EXPRESSED in a rational form.

As we know that a no. is a rational no. if it can be expressed in the form of p/q.So , 5 an PE expressed as 5/1.

Hope it helps U...

Discussion

23.	8/27 a ^7 b^2 +4/9a^5b^2 plz answer my question please sir
Answer» ANSWER: $\frac{8}{27} a {}^{7} b {}^{2} + \frac{4}{9} a {}^{5} b {}^{2} \\ ( \frac{2}{3} ) {}^{3} a {}^{7} b {}^{2} + (\frac{2}{3} ) {}^{2} a {}^{5} b {}^{2} \\ ( \frac{2}{3} ) {}^{2} a {}^{5} b {}^{2} \times ( \frac{2}{3} a {}^{2} + 1) \\ \\ this \: is \: your \: answer$

23.

8/27 a ^7 b^2 +4/9a^5b^2 plz answer my question please sir

Answer»

ANSWER:

$\frac{8}{27} a {}^{7} b {}^{2} + \frac{4}{9} a {}^{5} b {}^{2} \\ ( \frac{2}{3} ) {}^{3} a {}^{7} b {}^{2} + (\frac{2}{3} ) {}^{2} a {}^{5} b {}^{2} \\ ( \frac{2}{3} ) {}^{2} a {}^{5} b {}^{2} \times ( \frac{2}{3} a {}^{2} + 1) \\ \\ this \: is \: your \: answer$

Discussion

24.	How can we represent root5 on number line
Answer» Step-by-step EXPLANATION: HOPE this HELPS you my FRIEND

24.

How can we represent root5 on number line

Answer»

Step-by-step EXPLANATION:

HOPE this HELPS you my FRIEND

Discussion

25.	F(x)=3x²-2 g(x)=2x+3 finda. f[g(x)]b.g[f(x)]
Answer» HOPE it HELPS you......

Discussion

26.	What no should be added to get _4/7 to get 5/9
Answer» 4/7 + X = 5/9 X = 5/9 - 4/7 = -1/63 hope it HELPS

26.

What no should be added to get _4/7 to get 5/9

Answer»

4/7 + X = 5/9

X = 5/9 - 4/7 = -1/63

hope it HELPS

Discussion

27.	Write factors of a cube minus b cube
Answer» Step-by-step EXPLANATION: HOPE it HELPS you .......

27.

Write factors of a cube minus b cube

Answer»

Step-by-step EXPLANATION:

HOPE it HELPS you

.......

Discussion

28.	Can I solve this question by applying the formula of simple interest ...???
Answer» Where is your QUESTION MATE!??

Discussion

29.	Find the greatest number of 6 digits exactly divisisible by 24 , 15 and 36
Answer» 999720 is your ANSWER BUDDY....

Discussion

30.	How did you take those 4 consecutive no.s???
Answer» PLEASE BE SURE ABOUT YOUR QUESTION SIR...

Discussion

31.	What is 2 multiplied by the sum of 2 and 2
Answer» SUM of 2AND 2=4 4×2=8 That's your ANS

31.

What is 2 multiplied by the sum of 2 and 2

Answer»

SUM of 2AND 2=4

4×2=8

That's your ANS

Discussion

32.	A cubic box has a volume of 128 cubic metres . Its dimwnsions could be __________
Answer» 21.3 METRES PLS FOLLOW me

Discussion

33.	The length of a rectangle is 5m greater than its breadth and its perimeter is 250m find its length and breadth
Answer» Answer: Let the BREADTH be '''X''' So LENGTH be '''X+5''' As PERIMETER is 250 perimeter=2(l+b) 250=2(x+x+5) 250=2(2x+5) 250=4x+10 250-10=4x 240=4x x=240/4 x=60

33.

The length of a rectangle is 5m greater than its breadth and its perimeter is 250m find its length and breadth

Answer»

Answer:

Let the BREADTH be '''X'''

So LENGTH be '''X+5'''

As PERIMETER is 250

perimeter=2(l+b)

250=2(x+x+5)

250=2(2x+5)

250=4x+10

250-10=4x

240=4x

x=240/4

x=60

Discussion

34.	The multiplication of a number by its reciprocal gives_______.
Answer» Answer: 1 Step-by-step explanation: 2 multiplied by 1/2 is 1 by cutting the 2's in numerator and denominator. similarly, 3/4 × 4/3 GIVES 1 the same no. in numerator and denominator will REDUCE to 1 ...............

34.

The multiplication of a number by its reciprocal gives_______.

Answer»

Answer:

1

Step-by-step explanation:

2 multiplied by 1/2 is 1 by cutting the 2's in numerator and denominator. similarly, 3/4 × 4/3 GIVES 1 the same no. in numerator and denominator will REDUCE to 1 ...............

Discussion

35.	Ombined age of a and b is 27. A is 3 years older thanb. Find age of a?
Answer» Answer: 12 and 15 Step-by-step explanation: Let age of a be X + 3 and B be x then x + x + 3 = 37 2x = 27 - 3 2x = 24 x = 24/2 x = 12 Age of a = 12 + 3 = 15 Age of b = 12

35.

Ombined age of a and b is 27. A is 3 years older thanb. Find age of a?

Answer»

Answer:

12 and 15

Step-by-step explanation:

Let age of a be X + 3 and B be x

then

x + x + 3 = 37

2x = 27 - 3

2x = 24

x = 24/2

x = 12

Age of a = 12 + 3 = 15

Age of b = 12

Discussion

36.	Obtain maximum likelihood estimator f x =1 /theta*e^-x/theta
Answer» Step-by-step explanation: I'm given f(X;θ)=12e−\|x−θ\|, −∞ lnL(θ;x1,...,xn)=−nln2−∑\|xi−θ\| Usually I WOULD differentiate and find the maximum. Here differentiation does not work. But by INSPECTION, ∑\|xi−θ\| is always positive so L has a maximum when ∑\|xi−θ\|=0. But how can I express θ in terms of the xi's?

36.

Obtain maximum likelihood estimator f x =1 /theta*e^-x/theta

Answer»

Step-by-step explanation:

I'm given f(X;θ)=12e−|x−θ|, −∞

lnL(θ;x1,...,xn)=−nln2−∑|xi−θ|

Usually I WOULD differentiate and find the maximum. Here differentiation does not work. But by INSPECTION, ∑|xi−θ| is always positive so L has a maximum when ∑|xi−θ|=0. But how can I express θ in terms of the xi's?

Discussion

37.	Evalute (3/4×5/7)-(9/22+3/4)
Answer» Step-by-step EXPLANATION: (3/4 × 5/7) - (9/22 + 3/4) =15/28 - 51/44 =330 - 714/616 =-384/616. (ANS) HOPE it's HELP you..

37.

Evalute (3/4×5/7)-(9/22+3/4)

Answer»

Step-by-step EXPLANATION:

(3/4 × 5/7) - (9/22 + 3/4)

=15/28 - 51/44

=330 - 714/616

=-384/616. (ANS)

HOPE it's HELP you..

Discussion

38.	Solve by repeated subtraction117÷13 1
Answer» The ANSWER of the QUESTION is 9. 117/13 = 9

38.

Solve by repeated subtraction117÷13 1

Answer»

The ANSWER of the QUESTION is 9.

117/13 = 9

Discussion

39.	Examine whether the following numbers are rational or Irrational
Answer» ANSWER: Step-by-step EXPLANATION: RATIONAL

39.

Examine whether the following numbers are rational or Irrational

Answer»

ANSWER:

Step-by-step EXPLANATION:

RATIONAL

Discussion

40.	Sin40-sin200+sin280
Answer» ANSWER: HI MATE here is your answer .. Step-by-step explanation: 1.23060103686

40.

Sin40-sin200+sin280

Answer»

ANSWER:

HI MATE here is your answer ..

Step-by-step explanation:

1.23060103686

Discussion

41.	2) Solve using method of elimination :(a) x + 2y = -43x - 5y = -1-5x + 3y = 8(b) 4x + 9y = 54x + 6y = 14(c) 9x - 6y = 125y + (7)x) = 1(d) 2y - (3/x) = 12(6/y) + (5/x) = 13(e) (4/y) + (3/x) = 84x + (3/y) = 5(1) 5x + (4/y) = 7-3x + 2y = 1(g) x + y = 34x + 5y = 2
Answer» Answer: 2) Solve using method of elimination : (a) X + 2y = -4 3x - 5y = -1 -5X + 3y = 8 (b) 4x + 9Y = 5 4x + 6y = 14 (c) 9x - 6y = 12 5y + (7)x) = 1 (d) 2y - (3/x) = 12 (6/y) + (5/x) = 13 (e) (4/y) + (3/x) = 8 4x + (3/y) = 5 (1) 5x + (4/y) = 7 -3x + 2y = 1 (g) x + y = 3 4x + 5y = 2

41.

2) Solve using method of elimination :(a) x + 2y = -43x - 5y = -1-5x + 3y = 8(b) 4x + 9y = 54x + 6y = 14(c) 9x - 6y = 125y + (7)x) = 1(d) 2y - (3/x) = 12(6/y) + (5/x) = 13(e) (4/y) + (3/x) = 84x + (3/y) = 5(1) 5x + (4/y) = 7-3x + 2y = 1(g) x + y = 34x + 5y = 2

Answer»

Answer:

2) Solve using method of elimination :

(a) X + 2y = -4

3x - 5y = -1

-5X + 3y = 8

(b) 4x + 9Y = 5

4x + 6y = 14

(c) 9x - 6y = 12

5y + (7)x) = 1

(d) 2y - (3/x) = 12

(6/y) + (5/x) = 13

(e) (4/y) + (3/x) = 8

4x + (3/y) = 5

(1) 5x + (4/y) = 7

-3x + 2y = 1

(g) x + y = 3

4x + 5y = 2

Discussion

42.	न स 3 अंको की सक्से बड़ी संय, हैं।जो 15, 25, 30, से पूरी तरह विभाजित हो जाते हो।
Answer» Answer: ye NA sa kya h QUES samjh ni aya PLEASE REPEAT

42.

न स 3 अंको की सक्से बड़ी संय, हैं।जो 15, 25, 30, से पूरी तरह विभाजित हो जाते हो।

Answer»

Answer:

ye NA sa kya h QUES samjh ni aya PLEASE REPEAT

Discussion

43.	Find four solutions for x=8y
Answer» Y=8X 8Y/X=0 1/8=Y/X this is your ANSWER

43.

Find four solutions for x=8y

Answer»

Y=8X

8Y/X=0

1/8=Y/X

this is your ANSWER

Discussion

44.	Find thesum of the series 3+5+7+6+9+12+9+13+17+.... to 3n terms
Answer» i THINK sum=6n+1 as n=3n TERMS

44.

Find thesum of the series 3+5+7+6+9+12+9+13+17+.... to 3n terms

Answer»

i THINK sum=6n+1 as n=3n TERMS

Discussion

45.	14,15 plz sir. plz sir
Answer» Step-by-step explanation: 2) it has no FACTOR other than 1 and itself

45.

14,15 plz sir. plz sir

Answer»

Step-by-step explanation:

2) it has no FACTOR other than 1 and itself

Discussion

46.	RENU completed 2/3 part of her home work Hoe much part of her home work had she completed in 1 and 1/3 hours
Answer» ANSWER: PLZZZZ CHECK your QUESTION again WRITE

46.

RENU completed 2/3 part of her home work Hoe much part of her home work had she completed in 1 and 1/3 hours

Answer»

ANSWER:

PLZZZZ CHECK your QUESTION again WRITE

Discussion

47.	2) Solve using method of elimination :(a) x + 2y = -43x - 5y = -1
Answer» ANSWER: x+2y=-4(I) 3x-5y=-1(II) (I)×3-(ii) 3x+6y=-12 3x-5y=-1 3x CANCELLED we find 11y=-11 y=-1 y PUT in (I) x-2=-4 x=-4+2 x=-2 -2,-1

47.

2) Solve using method of elimination :(a) x + 2y = -43x - 5y = -1

Answer»

ANSWER:

x+2y=-4(I)

3x-5y=-1(II)

(I)×3-(ii)

3x+6y=-12

3x-5y=-1

3x CANCELLED we find

11y=-11

y=-1

y PUT in (I)

x-2=-4

x=-4+2

x=-2

-2,-1

Discussion

48.	Find a number whose one third is 2 more than 3
Answer» Step-by-step EXPLANATION: LET the NUMBER be x. 1/3x=23 x=63 x=18

48.

Find a number whose one third is 2 more than 3

Answer»

Step-by-step EXPLANATION:

LET the NUMBER be x.

1/3x=2*3

x=6*3

x=18

Discussion

49.	the missing number in the ordered pair (x,-8). If the number of the Pair is 4 more than the first number
Answer» ANSWER: x=-12 because -12+4=-8

49.

the missing number in the ordered pair (x,-8). If the number of the Pair is 4 more than the first number

Answer»

ANSWER:

x=-12

because -12+4=-8

Discussion

50.	Mr. Mehta divided Rs.1,90,000 amongst his three children – Gopal, Hari & Krishna such that Krishna gets 5 times of what Gopal gets and Gopal gets 3 times of what Hari gets. Find the share of each.
Answer» ANSWER: dyfyrfufufudududyd6dydydydududdu

50.

Mr. Mehta divided Rs.1,90,000 amongst his three children – Gopal, Hari & Krishna such that Krishna gets 5 times of what Gopal gets and Gopal gets 3 times of what Hari gets. Find the share of each.

Answer»

ANSWER:

dyfyrfufufudududyd6dydydydududdu

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