Investment problems such as those in Exercises 75–80 can be solved by using a method similar to the one explained in Example 2, along with the simple-interest formula I = PRT.Solve each problem. Let T = 1year for each exercise.
Lottery Winnings Nancy B. Kindy won $200,000 in a state lottery. She first paid income tax of 30% on the winnings. Of the rest, she invested some at 1.5% and some at 4%, earning $4350 interest per year. How much did she invest at each rate?
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