SOLUTION: The perimeter of a rectangle is 128 cm. The width is 3 times the length. What are the dimensions of the rectangle?

SOLUTION: The perimeter of a rectangle is 128 cm. The width is 3 times the length. What are the dimensions of the rectangle?

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Question 1072799: The perimeter of a rectangle is 128 cm. The width is 3 times the length. What are the dimensions of the rectangle?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
For a rectangle,

So,

and

Substituting,

Solve for L then use either equation to solve for W.

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