A square has its length and width increased by two feet and four feet respectively so that it is now a rectangle. The perimeter of the new rectangle is eight feet less than twice the original perimeter. What was the original perimeter?

Question

Mathematics

Genesis Freeman

9 October, 10:24

A square has its length and width increased by two feet and four feet respectively so that it is now a rectangle. The perimeter of the new rectangle is eight feet less than twice the original perimeter. What was the original perimeter?

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Answers (2)

Know the Answer?

Pablo · Answer 1

I think the correct anwer p=20

Maximo Mccoy · Answer 2

Answer: 20

Step-by-step explanation:

P=2a+2b=2 (a+b)

a1=a+2

b1=b+4

Pnew=2 (a+2) + 2 (b+4)

Pnew=2a+2b+4+8

Pnew=2 (a+b) + 12

Pnew=2P-8

P+12=2P-8

12+8=2P-P

20=P