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kprincess16r
kprincess16r
12.11.2020 • 
Mathematics

You have $2,000 to invest in three types of stocks. You expect the annual returns on Stock X, Stock Y, and Stock Z to be 12%, 10%, and 6%, respectively, and your overall annual return to be 9%. You want the
combined investment in Stock Y and Stock Z to be three times the amount invested in Stock X.
(A)
Assign and identify the variables.
(B)
Write a system of equations that represents the information in the scenario.
1
(C)
Write the system of equations in part (b) in matrix form:

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