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April 21, 2014

April 21, 2014

Posted by **Melanie** on Tuesday, December 6, 2011 at 10:16pm.

- A=LxW -
**Anonymous**, Wednesday, December 7, 2011 at 6:48amL = 5W-13

LW = 28

(5W-13)W = 28

5W^2 - 13W - 28 = 0

(5W+7)(W-4) = 0

so, W=4

L = 5*4-13 = 7

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