Question

The length is 3 inches less than twice the width and the permiter is 42 inches. Find dimensions

Answer 1

Here

Explanation:

length = x

width = 2x - 3

Perimeter = 2length + 2 width

2x + 2(2x - 3) = 42

2x + 4x - 6 =42

6x - 6 = 42

Add 6 to both sides

6x = 48

Divide both sides by 6

x = 8

Length = 8 inches

Width = 2(8) - 3 = 16-3 = 13 inches