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  3. 10.045you invest in aaa-rated bonds, a-rated bonds

10.045You invest in AAA-rated bonds, A-rated bonds, and B-rated bonds. The average yields are 4.5%...

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10.045You invest in AAA-rated bonds, A-rated bonds, and B-rated bonds. The average yields are 4.5% on AAA bonds, 5% on A bonds, and 9% on B bonds. You invest twice as much in B bonds as in A bonds. Let x, y, and zrepresent the amounts invested in AAA, A, and B bonds, respectively.X +y + z = (total investment)0.045x+0.05y + 0.09z = (annual return)2y-Z = 0MY NOTESUse the inverse of the coefficient matrix of this system to find the amount invested in each type of bond for the given total investment and annual return. (Round your answers to the nearest cent.)Total Investment Annual Return$12,700$815amount invested in AAA-bonds $amount invested in A-bonds$amount invested in B-bonds$PRACTICE ANOTHER

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