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August 30, 2015

Homework Help: algebra

Posted by aj on Saturday, February 25, 2012 at 9:19am.

A man invested half of his money at 5%, one-third of his money at 4%, and the rest of his money at 5.5%. If his total investment income was $570, how much had he invested?
and please show me the solution to solve this problem. thanx

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