SOLUTION: The Grand Bank loaned one borrower $25000 and another borrower $50000 at an interest rate that was twice that of the first. If the combined annual interest received by the bank was

Algebra ->  Customizable Word Problem Solvers  -> Coins -> SOLUTION: The Grand Bank loaned one borrower $25000 and another borrower $50000 at an interest rate that was twice that of the first. If the combined annual interest received by the bank was      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 387142: The Grand Bank loaned one borrower $25000 and another borrower $50000 at an interest rate that was twice that of the first. If the combined annual interest received by the bank was $7500, what was the interest rate for each loan?

Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
25000x+2(50000x)=7500
25000x+100000x=7500
125000x=7500
x=0.06=6%
2x=0.12=12%