February 25, 2017

Homework Help: algebra

Posted by mark on Sunday, March 8, 2009 at 12:20pm.

Solve the problem. Helen Weller invested $15,000 in an account that pays 12% simple interest. How much additional money must be invested in an account that pays 15% simple interest so that the total interest is equal to the interest on the two investments at the rate of 13%?

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