The length of a rectangular room is 6 feet longer than twice the width. If the room's perimeter is 156 feet, what are the room's dimensions?

Answer 1

L=6+2W

2W = L-6

156 = 2W + 2L = L-6 + 2L = 3L -6

3L = 156+6 = 162

L = 162/3 = 54 feet

2W = L-6 = 54- 6 = 48

W = 48/2 = 24 feet

width = 24 ft, length = 54 feet