Solve.Charlotte invested $6000 in money market funds. Part was invested at 15% interest, the rest at 11% interest. At the end of each year the fund company pays interest. After one year she earned $764 in simple interest. How much was invested at each interest rate?
A. $2400 at 15%;
$3600 at 11%
B. $2600 at 11%;
$3400 at 15%
C. $2600 at 15%;
$3400 at 11%
D. $2400 at 11%;
$3600 at 15%
Answer: C
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