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August 23, 2014

Homework Help: Pre-Algebra

Posted by Tammy Evert on Sunday, July 16, 2006 at 12:17am.

If the perimeter of a rectangle is 38 ft and the width is 9 ft, find its length. [Hint: The perimeter of a rectangle is given by P = 2L + 2W.]


I don't know why this is a problem for you. P = 38 and W = 9. Solve for L. You have only one unknown in the equation. If you don't know what to do next, please explain why you don't know how to proceed.


Let P = 38 and W = 9 and solve the perimeter equation "hint" for the length, L. As DrBob222 has stated, it is just a matter of plugging in the numbers and solving for the single unknown, L.

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