Math, asked by kritigautam0, 2 months ago

Can any one tell the all answers of this give photo pls quickly!!! ​

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Answers

Answered by VindyaNayak
0

Answer:

1) 2y+9=4

2y =4-9

2y= -5

y=-5/2

Answered by aleenafootball2
0

Step-by-step explanation:

1) 2y+9=4  solve 15/4 - 7x = 9

2y =4-9

2y= -5

y=-5/2

2)  3/7 + x  = 15/7  

solve

1. rearrange term

3/7 + x  =15/7

x + 3/7  = 15/7

2. subtract 3/7 from  both sides of the equation

x + 3/7 = 15 /7

x + 3/7  - 3/7  = 15/7 -3/7  

3. simplify

subtract the number   x =  12/7  

solution

x = 12/7

3) Given

15/4 -7x = 9

Find out

We need to find the value of x

Solution

15/4 -7x = 9

On rearranging the terms we get,

7x – 15/4 = 9

Taking 15/4 into RHS and solving we get,

7x = 15-36/4

7x = -21/4

x = -21/4*1/7

= -3/4

Therefore the answer of x = -3/4

4)a) 15+7=x

x=22

hence.,x=22

b) 8x + 6 = 2 (x - 1 ) + 7

-6+2 = 7x -8x

-4 = -1x

x = -1/4

6)

cost of a pencil = x

cost of pen = x+3

10x + 5(x+3) = 30

10x + 5x + 15 = 30

15x = 15

x = 1

cost of pencil = 1

cost of pen = 1+3 or 4

7) Let the three consecutive multiples of 11 are 11x, 11x+11 and 11x+22

Their sum is 363

11x+11x+11+11x+22=363

33x+33=363

33x=363−33

33x=330

x=

33

330

x=10

First multiple =11x=11×10=110

Second multiple =11x+11=110+11=121

Third multiple =11x+22=110+22=132

9)

we have to find the numbers .

solution:-

let. the first multiple of 9 = 9x

because these are consecutive .

then

2nd number = 9(x+1)

3rd number = 9(x+2)

Now,

According to question:

9x +9(x+1) + 9(x+2) = 999

=> 27x +27 = 999

=> 27x = 999-27 = 972

=> x = 36

hence;

1st number multiple of 9 = 9× 36 = 324

2nd number multiple of 9 = 9×37 = 333

3rd number multiple of 9 =9× 38 = 342

hey bro i didn't get the answer of  question no : 5,8,10,11

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