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December 21, 2014

Homework Help: math

Posted by jota on Sunday, May 6, 2012 at 11:44pm.

if $9,000 is to be invested, part at 13% and the rest at 8% simple interest , how much should be invested at each rate so that the total annual return will be the same as $9,000 invested at 9% set up as a system of linear equation

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