SOLUTION: A rectangle has a perimeter of 120 feet. The width is 3 times the length. What is the length of the rectangle?

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Question 388028: A rectangle has a perimeter of 120 feet. The width is 3 times the length. What is the length of the rectangle?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
P=2L%2B2W=120
L%2BW=60
Then,
W=3L
Substitute,
L%2B3L=60
4L=60
highlight%28L=15%29ft
Then,
W=3%2815%29
highlight%28W=45%29ft