Math Algebra1A
posted by Kim .
A total of $12,000 is invested in two funds paying 9% and 11% simple interest. If the yearly interest is $1,180, how much of the $12,000 is invested at each rate?
There seems to be a decimal in this problem if so how do I get rid of it verifying x,y?

If x is invested at 9%, 12000x is invested at 11%. So, adding up the interest,
.09x + .11(12000x) = 1180
x = 7000
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