Alex deposited $7500 in a year. The annual interest fees were at 12% and 10% respectively. The total interest payed was $890. How much was paid at the 12% fee. I got as far as the equation portion of the problem. I was somewhere around 890=.12+.1(7500). I solved the equation but the answer just doesn't seem right.
.12 x + .10(7500 - x) = 890
.02x + 750 = 890