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L = 2W - 4; L x W = 160.

Substitute: (2W - 4) x W = 160

ie 2W2 - 4W - 160 = 0

Factors are (2W + 16)(W - 10)

The width is 10 in and the length 16 in.

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โˆ™ 2010-04-18 19:43:08
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Q: The length of a rectangular pizza is four inches less than twice its width The area of the pizaa is 160 in squared Find the dimensions of the pizza?
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