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OpenStudy (anonymous):
Need help!!! A patio is to be built with 160 tiles. In how many different rectangular arrays can it be arranged?
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OpenStudy (anonymous):
You can think of each combination as a number pair (width,height). We could have a 160 tiles wide rectangle, but we couldn't have say 150wide because there would only be 10 tiles left. We'd end up like |dw:1396826997099:dw|
OpenStudy (anonymous):
so you have (160,0), (80,2),(40,4), etc. Just count them all out. You can use some symmetry to save some calculations.
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