SOLUTION: I need some help with this problem: "You invested $22,000 in two accounts paying 3% and 9% annual​ interest, respectively. If the total interest earned for the year was $14

Algebra ->  Equations -> SOLUTION: I need some help with this problem: "You invested $22,000 in two accounts paying 3% and 9% annual​ interest, respectively. If the total interest earned for the year was $14      Log On


   

Question 1016691: I need some help with this problem:
"You invested $22,000 in two accounts paying 3% and 9% annual​ interest, respectively.
If the total interest earned for the year was $1440, how much was invested at each​ rate?"
I have to write this as an equation and show my work. Would appreciate any help. Thank you.
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
This can be done in one variable or in two variables.

x dollars at 3%, and therefore 22000-x at 9%

Total interest for the year, 1440 dollars.
%280.03%29x%2B%280.09%29%2822000-x%29=1440
Solve this for x.