SOLUTION: Marie earned an extra $10,000 last year from a commission-based job. She invested part of the money at 10% and the rest at 8%. She made a total of $940. How much was invested at 8%

SOLUTION: Marie earned an extra $10,000 last year from a commission-based job. She invested part of the money at 10% and the rest at 8%. She made a total of $940. How much was invested at 8%

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Question 1050698: Marie earned an extra $10,000 last year from a commission-based job. She invested part of the money at 10% and the rest at 8%. She made a total of $940. How much was invested at 8%? How much was invested at 10%?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
x amount invested at 10%
.10x + .08(10000-x) = $940
x = 140/.02 = 7000, invested at 10%. 3000 at 8%
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