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March 30, 2015

March 30, 2015

Posted by **Mark G** on Friday, September 10, 2010 at 9:50pm.

- Math -
**PsyDAG**, Saturday, September 11, 2010 at 11:21amLet x = amount at 9% and y = amount at 11%

y = x + 1600

.09x + .11y = 760

Substitute x + 1600 for y in the second equation and solve for y. Put that value in first equation to find x. To check, put both values in second equation.

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