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19 May, 17:41

The floor of a one-story building is 14 feet longer than it is wide. The building has 1715 square feet of floor space. Find the length l and width w of the floor.

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  1. 19 May, 19:25
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    w=widthlength=w+14A=lww (w+14) = 1395w (w+14) - 1395=0w2+14w-1395=01395=3x3x5x31 and (3x3x5) - 31=45-31=14 (w+45) (w-31) = 0w-31=0w=31w+14=31+14=45length=45 feetwidth=31 feet
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