the formula for the perimeter of a rectangle is P=2L,+2W, where L is the length and W is the width. a rectangle has a perimeter of 24 inches.

Question

find its dimensions if its length is 3 inches greater than its width. how do i solve and write this out!

Answer 1

P=24

L=3+W

P=2L+2W

24= 2(3+W) +2W

24=6+2W + 2W

24 = 6 + 4W

18 = 4W

W = 18/4 = 9/2 = 4.5

L = 3+W = 3+4.5 = 7.5