Question: Solve the problem using a system of three equations in three unknowns and Cramer's rule. A $ 1 0 4 , 0 0 0 trust

Solve the problem using a system of three equations in three unknowns and Cramer's rule.
A $104,000 trust is to be invested in bonds paying 6%, CDs paying 5%, and mortgages paying 10%. The bond and CD investment must equal the mortgage investment. To earn an $8020 annual income from the investments, how much should the bank invest in bonds?

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