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September 17, 2014

September 17, 2014

Posted by **zana** on Thursday, October 13, 2011 at 7:13pm.

- pre-calculus -
**Steve**, Friday, October 14, 2011 at 10:58amwork with the principal and the interest.

x * 0.04 + (100000-x) * 0.075 = 5050

.04x + 7500 - .075x = 5050

.035x = 2450

x = 70000

70000 * .04 + 30000 * .075 = 5050

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