Question

answer the following​

Answer 1

Step-by-step explanation:

Refer to 3 attachments above.....

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Answer 2

3.

let number be x

then 2x+7=49

2x+7=49

2x=49-7

2x=42

x=42/2

x=21

Similarly,

5. let number be x

then,

(x*7)-3=53

x*7=53+3

x*7=56

x=56/7

x=8

7. let number be x

then,

x+(x+1)+(x+2)=24

x+x+1+x+2=24

3x+3=24

3x=24-3

3x=21

x=21/3

x=7

9. here let breadth is x

then, length will be 4x

Then,

perimeter of rectangle is 2(l+b)

by putting values

84=2(4x+x)

84=2(5x)

84=10x

84/10=x

42/5=x

then,

breadth=x=8.4

length=4x=4*42/5

33.6