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posted by jessica on Thursday, January 15, 2009 at 9:24pm.

A prfessor wants to supplement her pension with investment interst. If she invest $28,000 at 6%, how much more would she have to invest at 7% to achieve a goal of %3,500 per year in supplemental income?

28000(1.06) + x(1.07) = 3500 solve for x

just looked at my answer again, and it looks like I messed up should have said: 28000(.06) + x(.07) = 3500 the answer is 26000

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