college alg HELP!
posted by samantha on .
I cannot figure a way to do this problem:
An investment of $98,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned 8% interest, the second 6%, and third 9%. The total interest from the investments was $7560. The interest from the first investment was 3 times the interest from the second. Find the amounts of the three parts of the investment.
let the three investment amounts be E, S, and N
Three equations, three unknowns, I assume you can put the icing on.
I know how to set it up but I cannot get the three solutions right. I solve by addition and what not but cann't ever get the right answer!