The length of a rectangle is three more than triple the width. If the perimeter is 126 inches, find the dimensions

Answer 1

L=3+3W

Perimeter = twice (L+W) = 2(3+3W +W) = 2(3+4W) = 6 + 8W = 126

8W = 126-6 =120

W = 120/8 = 60/4 =30/2 = 15

W = width = 15 inches

L=3+3W = 3+3(15) = 3+45 = 48 inches

WxL is 15 by 48 inches are the dimensions of rectangle