Question

The length of a rectangle is three times linger that the width. The perimeter of the rectangle is 40 inch. What is the length of the rectangle in inches

Answer 1

Explanation:

L=3W

P=2L+2W

40= 2 (3W)+2W

40=6W+2W

8W=40

W=40/8

W=5 in

L=15 in (3W= 3*5=15)