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December 18, 2014

December 18, 2014

Posted by **Ruth** on Sunday, September 22, 2013 at 8:15pm.

- Algebra (Work Problem) -
**Steve**, Monday, September 23, 2013 at 12:36am1/a + 1/b + 1/c = 1/380

1/a + 1/b = 1/570

1/b + 1/c = 1/760

solve for a,b,c and you get

1/a + 1/c = 1/760 + 1/1140 = 1/456

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