Answer:
Explanation:
You want to find the amounts invested in accounts paying 8% and 12% such that the total of $10,000 invested earns $992 in interest the first year.
Setup
Let x represent the amount invested at 12%. Then (10000-x) is the amount invested at 8%, and the total interest earned is ...
0.12x +0.08(10000 -x) = 992
Solution
0.04x +800 = 992
0.04x = 192
x = 4800
10000 -x = 5200
$4800 was invested at 12%; $5200 was invested at 8%.