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September 20, 2014

September 20, 2014

Posted by **Drew** on Sunday, March 3, 2013 at 11:32pm.

$656.50, how much was invested at each rate?

- Math -
**Dr. Jane**, Monday, March 4, 2013 at 9:30amx = amount at 7%

y = amount at 6.25%

x + y = 10,000 or x = 10,000 - y

.07x + .0625y = 656.50

You can solve by substitution:

.07(10,000 - y) +.0625y = 656.50

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