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

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Question 675137: The length of a rectangle is equal to three times its width. if the perimeter is equal to 168 feet, what is the length of the rectangle?
Answer by sachi(548) About Me  (Show Source):
You can put this solution on YOUR website!
let the width =x
so the length=3x
so the perimeter= 2(x+3x)=8x=168 given
so x=168/8=21 is width
so the length=63
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