Question

The width of a rectangle is 7 meters more than one third the length. The perimeter is 78 meters. Find the length and the width

Answer 1

Explanation:

P=2l+2w

78=2l+2(l/3+7)

78=2l+2l/3+14

64=6l/3+21/3

64=8l/3

l=24 meters

78=2(24)+2w

78=48+2w

2w=30

w=15 meters