The length of a rectangle is 5 5 inches more than the width. the perimeter is 42 42 inches. find the length and the width.

The length of a rectangle is 5 more than the width (w). The Perimeter (P) is 42 inches.

width = w

length = w+5

P=42 = 2w+2l

1/2P = 21=w+l (plug in for "l")

21 = w + w+5

21 = 2w+5

16 = 2w

w = 8 inches

length = w+5 = 8+5 = 13 inches

Answer:

This rectangle has a length of 13 inches and a width of 8 inches.