Question 1023166
Call the amount invested at 7%, x.
Then the amount at 6% must be $53,000-x.
The set up looks like this:
.07x + .06(53000-x) = 3490
.07x + 3180 - .06x = 3490
.01x = 310
x = $31000 at 7%
and
53000-x = $22000 at 6%