find the dimensions

Question

The length of a rectangle is four more than triple the width. If the perimeter is 152 inches, find the dimensions.

Answer 1

L = 4+3W

152 = 2L +2W

76 = L+W = 4+3W +W = 4+4W

72 = 4W

W = 72/4= 18 in. wide

L = 4+3(18) = 4+54 = 58 in long

2L+2W = 2(58)+2(18) = 116+36 = 152 in.