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%

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> 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%      Log On


   



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) About Me  (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%. 300010000-7000 at 8%