SOLUTION: A professor wants to supplement her pension with investment interest. If she invests $28,000 at 6% interest, how much more would she have to invest at 9% to achieve a goal of $2,67

Question 988049: A professor wants to supplement her pension with investment interest. If she invests $28,000 at 6% interest, how much more would she have to invest at 9% to achieve a goal of $2,670 per year in supplemental income?

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A professor wants to supplement her pension with investment interest. If she invests $28,000 at 6% interest, how much more would she have to invest at 9% to achieve a goal of $2,670 per year in supplemental income?
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Equation::
0.06*28000 + 0.09x = 2670
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6*28000 + 9x = 267000
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9x = 99000
x = $11000
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Cheers,
Stan H.
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