Question 165280
Let x = amount invested at 8%
then because "total invested was 18000"
18000-x = amount invested at 10%
.
.10(18000-x) = .08x + 360
1800 - .10x = .08x + 360
1800 = .18x + 360
1440 = .18x
1440/.18 = x
$8000 = x (amount invested at 8%)
.
Amount invested at 10%:
18000-x = 18000-8000 = $10000 (amount invested at 10%)