An investor invested a total of ​$3,500 in two mutual funds. One fund earned a 8​% profit while the other earned a 5​% profit. If the​ investor's total profit was ​$223​, how much was invested in each mutual​ fund?

Answer 1

If $x was invested at 8% then the rest (3500-x) was at 5%.
So now just add up the two parts, and make sure it equals the total profit.
0.08x + 0.05(3500-x) = 223
Now finish it off