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OpenStudy (anonymous):
The dimensions of Eric’s pool are 9 feet by 7 feet. He wants to build a walkway surrounding the pool so that the square footage of the walkway and pool is 143 square feet. How wide is one side of the walkway?
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OpenStudy (anonymous):
(9+2x)(7+2x) = 143 solve and find x=2
OpenStudy (phi):
|dw:1324403044120:dw|
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