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November 21, 2014

November 21, 2014

Posted by **Jim** on Tuesday, November 16, 2010 at 5:16pm.

- Math -
**Reiny**, Tuesday, November 16, 2010 at 5:27pmwidth of pool ---> x

length of pool --> x+7

area of pool = x(x+7)

width of whole pool area = x+3

length of whole pool area = x+7+3 = x+10

area of pool area = (x+3)(x+10)

area of concrete walkway = area of whole thing - area of pool

solve

120 = (x+3)(x+10) - x(x+7)

etc.

(you should get x = 15)

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