SOLUTION: A woman invested part of $28,500 at 5% interest and the rest at 7%. If her annual interest is $1,725, how much did she invest at 5%?

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Question 1078817: A woman invested part of $28,500 at 5% interest and the rest at 7%. If her annual interest is $1,725, how much did she invest at 5%?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
Let n and 28500 be the amount invest at 7% and 5%, respectively. Then:
.07n+.05(28500-n)=1725
.02n=300
n=15000
$15000 was invested at 7%, and $13500 was invested at 5%. ☺☺☺☺