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August 21, 2014

August 21, 2014

Posted by **R** on Sunday, February 7, 2010 at 5:51pm.

- math -
**Damon**, Sunday, February 7, 2010 at 6:01pmx two pointers and (40 -x) four pointers

2x + 4(40-x) = 100

2x + 160 - 4x = 100

2x = 60 etc

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