Posted by **Wejie** on Monday, February 15, 2010 at 8:53pm.

Johnny has two bank accounts. One pays 7% interest and the other pays 10% interest. A total of $25,000 invested in the two accounts. Last year he earned $2,200 in interest on two accounts. How much money does he have in each account? define variables and write out a system of equation!

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