Problema Solution
A professor wants to supplement her pension with investment interest. If she invests $32,000 at 4% interest, how much more would she have to invest at5% to achieve a goal of $2,130 per year in supplemental income?
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A professor wants to supplement her pension with investment interest. If she invests $32,000 at 4% interest, how much more would she have to invest at5% to achieve a goal of $2,130
let the amount be x
4%of 32000+5% of x=2130
4/100*32000+5/100*x=2130
128000/100+5/100x=2130
128000+5x=213000
5x=213000-128000
5x=85000
x =$17000