Question 70425
.14x+.09(28000-x)=3370
.14x+2520-.09x=3370
.14x-.09x=3370-2520
.05x=850
x=850/.05
x=17000 amount invested @ 14%
28000-17000=11000 invested @ 9%
proof
17000*.14+11000*.09=3370
2380+990=3370
3370=3370