8.3 Hmwk - The Inverse of a Sque X + https://www.webassign.net/web/Student/Assignment-Responses/submit?dep=32106565&tags=autosave#Q13 13. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER You 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 z represent 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 = Use 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 $12,200 $845 amount invested in AAA-bonds $ amount invested in A-bonds amount invested in B-bonds Need Help? Read It Watch It Submit Answer 14. [1/1 Points] DETAILS PREVIOUS ANSWERS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find the inverse of the matrix, if possible. (If an answer does not exist, enter DNE in any cell of the matrix.) 8:03 PM Type here to search ? 56OF 10/26/2023