SOLUTION: How can $54,000 be invested, part at 8% annual simple interest and the remainder at 10% annual simple interest, so that the interest earned by the two accounts will be equal ?

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Question 373548: How can $54,000 be invested, part at 8% annual simple interest and the remainder at 10% annual simple interest, so that the interest earned by the two accounts will be equal ?
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = the interest earned by both accounts
Let = portion of $54000 invested at 8%
Let = portion of $54000 invested at 10%
given:



-----------------

by substitution:




and



$30,000 was invested at 8%
and $24,000 was invested at 10%


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