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August 20, 2014

August 20, 2014

Posted by **Sally** on Wednesday, April 14, 2010 at 9:52pm.

- Math -
**Reiny**, Wednesday, April 14, 2010 at 11:10pmlet number of marbles in the bag be x

x/3 + x/4 + 10 = x

times 12

4x + 3x = 120 + 12x

120 = 5x

x = 24

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