A bank loaned out $19,000, part of it at the rate of 9% per year and the rest at 19% per year. If the interest received in on year totaled $2000, how much was loaned at 9%?
amount at 9% ---- x
amount at 19% ---- 19000 - x
.09x + .19(19000-x) = 2000
solve for x
Wow, banks paying 19% ?????
Better update that textbook