Question 976089
I have tried so many times but can not figure this one out...
You have a total of $15 000 to deposit into two simple interest accounts. On one account, the annual simple interest is 5.5%, on the second 7%. How much should be invested in each account so that the total annual interest earned is $635. 
=======================
$15000 at 5.5% --> $825, more than $635.
Putting part of the money in 7% interest will increase the interest income.
It's not possible to get $635.