Friday
March 27, 2015

Homework Help: algebra

Posted by matt on Monday, November 1, 2010 at 4:54pm.

two investments were made totaling $15,000. for a certain year these investments yielded $1432 in simple interest. part of the $15,000 was invested at 9% and part at 10%. find the amount invested at each rate.

a total of $1150 was invested, part of it at 12% and part at 11%. the total yield was $133.75. How much was invested at each rate?

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