SOLUTION: The length of a rectangle is twice the width. The perimeter is 48 inches. Find the dimensions of the rectangle.

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Question 995314: The length of a rectangle is twice the width. The perimeter is 48 inches. Find the dimensions of the rectangle.
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

if the length of a rectangle L is twice the width W, we have
L=2W
if the perimeter is P=48in, we have
2%28L%2BW%29=48in...substitute 2W for L
2%282W%2BW%29=48in
2%283W%29=48in
6W=48in
W=48in%2F6
highlight%28W=8in%29
go to L=2W substitute 8in for W
L=2%2A8in
highlight%28L=16in%29


so, the dimensions of the rectangle are:highlight%28L=16in%29 and
highlight%28W=8in%29