SOLUTION: Formulate a system of equations for the situation below and solve.
A private investment club has $400,000 earmarked for investment in stocks. To arrive at an acceptable overall
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Question 901437: Formulate a system of equations for the situation below and solve.
A private investment club has $400,000 earmarked for investment in stocks. To arrive at an acceptable overall level of risk, the stocks that management is considering have been classified into three categories: high-risk, medium-risk, and low-risk. Management estimates that high-risk stocks will have a rate of return of 13%/year; medium-risk stocks, 10%/year; and low-risk stocks, 7%/year. The members have decided that the investment in low-risk stocks should be equal to the sum of the investments in the stocks of the other two categories. Determine how much the club should invest in each type of stock if the investment goal is to have a return of $37,600/year on the total investment. (Assume that all the money available for investment is invested.)
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
a+b+c=400000,
.13a+.10b+.07c=37600,
c=a+b
a=120000, b=80000, c=200000
check
.13a+.10b+.07c=37600
.13(120000)+.10(80000)+.07(200000)=37600
15600+8000+14000=37600
ok
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