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November 21, 2014

November 21, 2014

Posted by **RNRH** on Monday, February 14, 2011 at 2:29pm.

- algebra -
**Reiny**, Monday, February 14, 2011 at 2:57pm9% investment ---- $x

12% investment ---$ 2x

solve

.09x + .12(2x) = 396

I suggest multiplying each term by 100

9x + 12(2x) = 39600

etc

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