Question 353617
Hi,
Let x represent the amount invested at 6%.  then (12,000-x) would be the amount remaining to be invested at 9%
.
question states;
.06x + .09(12,000-x) = $828
.
simplify
.06s  + 1080 - .09x = $828
1080-828 = .03x
252 = .03x
$8400 = x
.
$8400 at 6% and $3600 at 9%