Find the amount that was invested at each rate.?

Question

A woman invests a total of $20,000 in two accounts, one paying 5% and the other paying 8% simple interest per year. Her annual interest is $1180. How much did she invest at each rate?

Answer 1

$5900 is invested, part of it at 12% and part of it at 9%. For a certain year, the total yield is $624.00. How much was invested at each rate?