SOLUTION: The length of a rectangular lawn is twice its width. If the perimeter of the lawn is 72m, what is its width?

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Question 970644: The length of a rectangular lawn is twice its width. If the perimeter of the lawn is 72m, what is its width?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
P=2L+2W
L=2W
72=2*2W+2W
72=4W+2W
72=6W
W=72/6
W=12 m ans. for the width.
L=2*12=24 m ans. for the length.
proof:
72=2*24+2*12
72=48+24
72=72