SOLUTION: The length of a rectangleis three times the width. The perimeter is 72 meters. Find the dimensions of the rectangle?

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Question 938295: The length of a rectangleis three times the width. The perimeter is 72 meters. Find the dimensions of the rectangle?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
For a rectangle,
P=2%28L%2BW%29=72
L%2BW=36
.
..
L=3W
Substitute,
3W%2BW=36
4W=36
W=9
So then,
L=3%289%29
L=27