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OpenStudy (anonymous):
Mike invested $505 for one year. He invested part of it at 6% and the rest at 5%. At the end of the year he earned $30.15 in interest. How much did Mike invest at each rate of interest?
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hero (hero):
x + y = 505 .06x + .05y = 30.15
hero (hero):
^Hint
hero (hero):
By the way, x and y represent the different amounts invested
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