SOLUTION: An amount of money is invested at 3% and $2000 more is invested at 4%. If the interest earned is $920, how much was invested at each rate?

SOLUTION: An amount of money is invested at 3% and $2000 more is invested at 4%. If the interest earned is $920, how much was invested at each rate?

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Question 998028: An amount of money is invested at 3% and $2000 more is invested at 4%. If the interest earned is $920, how much was invested at each rate?
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Call the amount invested at 3%, x. The setup looks like this:
.03x + .04(2000+x) = 920
.03x + 80 + .04x = 920
.07x = 840
x = 12000 @ 3%
2000+x = 14000 @ 4%
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