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Metallover
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Location: South Dakota
01.03.2011, 09:51 PM

All she needs to know is that it's a proportion. Proportions are among the most under appreciated tools of math.

Code:
23    4   Cross Multiply
-- = --
x     9   23(9)=4x  207/4=x

Last edited by Metallover; 01.03.2011 at 09:53 PM.
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