SOLUTION: Write a system of equations: Ann has $5000 to invest. She invests in two different accounts, one expected to return 4.5% and the other expectedto return 9%. In order to earn $3

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Write a system of equations: Ann has $5000 to invest. She invests in two different accounts, one expected to return 4.5% and the other expectedto return 9%. In order to earn $3      Log On


   

Question 226450: Write a system of equations:
Ann has $5000 to invest. She invests in two different accounts, one expected to return 4.5% and the other expectedto return 9%. In order to earn $320.50 for the year, how much should she invest at each rate.
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
.045x+.09(5000-x)=320.50
.045x+450-.09x=320.50
-.045x=-129.50
x=$2878 4.5%
5000-x=$2122 9%