SOLUTION: The width of a rectangular picture is one-half the length. The perimeter of the rectangle is 72 inches. Find the length of the picture.

Algebra ->  Rectangles -> SOLUTION: The width of a rectangular picture is one-half the length. The perimeter of the rectangle is 72 inches. Find the length of the picture.      Log On


   

Question 374221: The width of a rectangular picture is one-half the length. The perimeter of the rectangle is 72 inches. Find the length of the picture.
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
l = length, w = l/2. Then PERIMETER = 2l + 2(l/2) = 72.
2l + l = 72, or 3l = 72, or l = 24 inches, the length of the rectangular picture, and w = 24/2 = 12 inches, the width of the picture.