SOLUTION: Bob earned $6000 mowing lawns over the summer. He invested part of the $6000 at 3% simple interest and the rest of the $6000 at 4%. He earned a total of $220 in interest. How much
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Question 83379: Bob earned $6000 mowing lawns over the summer. He invested part of the $6000 at 3% simple interest and the rest of the $6000 at 4%. He earned a total of $220 in interest. How much did he invest at each rate? Answer by josmiceli(19441) (Show Source):
