SOLUTION: Find the perimeter of a rectangle whose area is 128 meters squared and whose length is twice it's width.

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Question 876122: Find the perimeter of a rectangle whose area is 128 meters squared and whose length is twice it's width.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
wL=128 and L=2w.
Substitute for L in the area equation and solve first for w.
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Perimeter will be 2w+2L.