SOLUTION: an executive invests 30,000,some at 10% and some at 5%. if she receives an annual return of 2200, how much is invested at 10%?

Algebra ->  Customizable Word Problem Solvers  -> Finance -> SOLUTION: an executive invests 30,000,some at 10% and some at 5%. if she receives an annual return of 2200, how much is invested at 10%?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 380894: an executive invests 30,000,some at 10% and some at 5%. if she receives an annual return of 2200, how much is invested at 10%?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
0.1x+0.05(30000-x)=2200
0.1x+1500-0.05x=2200
0.05x=2200-1500
0.05x=700
x=14,000 at 10%