Wednesday

April 23, 2014

April 23, 2014

Posted by **k.boy** on Wednesday, October 27, 2010 at 7:19pm.

- math -
**bobpursley**, Wednesday, October 27, 2010 at 7:24pmtotal mass: A+B=1000

copper mass: 1000*.45=.2A+.5B

solve for A, B

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