SOLUTION: The length of a rectangle is equal to three times its width. If the perimeter is equal to 168 ft. what is the length of the rectangle?

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Question 519361: The length of a rectangle is equal to three times its width. If the perimeter is equal to 168 ft. what is the length of the rectangle?
Answer by jerryguo41(197) About Me  (Show Source):
You can put this solution on YOUR website!
l= length
w= width
l=3w
2l%2B2w=168
Substitute
2%283w%29%2B2w=168
6w%2B2w=168
8w=168
w=21
Re-Enter
l=3%2821%29%7D%7D%0D%0A%7B%7B%7Bl=63
Length = 63 and Width = 21