In Exercises 6164, you invest in AAA-rated bonds, A-rated
Chapter , Problem 7.3.63(choose chapter or problem)
In Exercises 6164, you invest in AAA-rated bonds, A-rated bonds, and B-rated bonds. The average yields are 6.5% on AAA bonds, 7% on A bonds, and 9% on B bonds. You invest twice as much in B bonds as in A bonds. Let and represent the amounts invested in AAA, A, and B bonds, respectively. Use the inverse of the coefficient matrix of this system to find the amount invested in each type of bond. 63. $12,000 $835
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