SOLUTION: the perimeter of a rectangle is 144 feet. the length of the rectangle is 3 times the width. find the length, width, and area of the rectangle.

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Question 477070: the perimeter of a rectangle is 144 feet. the length of the rectangle is 3 times the width. find the length, width, and area of the rectangle.
Answer by solver91311(16868) About Me  (Show Source):
You can put this solution on YOUR website!


Let represent the length of the rectangle. Let represent the width. We are given that

The perimeter of a rectangle is given by

Substituting:



But since you were given that the perimeter is 144 feet:



Solve for to get the width. Calculate to get the length. Calculate to get the area.

John

My calculator said it, I believe it, that settles it
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