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January 28, 2015

January 28, 2015

Posted by **lauri** on Thursday, August 26, 2010 at 5:26pm.

- business math -
**drwls**, Thursday, August 26, 2010 at 5:33pmD + Q = 100

10D + 25Q = 1450

10(100 -Q) + 25Q = 1450

1000 -10Q + 25Q = 1450

15Q = 450

Q = 30 is the number of quarters

D = 70 is the number of dimes

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