SOLUTION: Investments: A total of $5000 is invested at 3% and 5% annual interest. After 1 year the total interest equals $210. How much money is invested at each interest rate?

Question 432586: Investments: A total of $5000 is invested at 3% and 5% annual interest. After 1 year the total interest equals $210. How much money is invested at each interest rate?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
The total of the investments is $5000, thus x+y=5000:
x+y=5000
.03x+.05y=210
Multiply the second equation by 100--
3x+5y=21000
5x+5y=25000
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2x=4000
x=2000
y=3000
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$2000 was invested at 3%, 3000 was invested at 5%.
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