9514 1404 393
Answer:
Explanation:
Let x represent the amount invested at 4%. Then (29000-x) is the amount invested at 3%. The total interest earned is ...
0.04x + 0.03(29000 -x) = 990
0.01x = 120 . . . . . . .subtract 870 and simplify
x = 12000 . . . . . . . divide by 0.01
29000 -x = 17000
$12000 was invested at 4%
$17000 was invested at 3%