Question

Last year, Hans had

$30,000
to invest. He invested some of it in an account that paid
9%
simple interest per year, and he invested the rest in an account that paid
10%
simple interest per year. After one year, he received a total of
$2900
in interest. How much did he invest in each account?

Answer 1

$30,000 in the 9% account and $20,000 in the other account.