SOLUTION: A total of $7000 is invested : part at 5% and the remainder at 10%. How much is invested at each rate if the anual intrest is $560?

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Question 979630: A total of $7000 is invested : part at 5% and the remainder at 10%. How much is invested at each rate if the anual intrest is $560?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
x=amount invested at 5%
7000-x= amount invested at 10%
.05x+ 0.1(7000-x)=560
.05x-0.1x + 700 = 560
-0.05x= - 140
x=$2800 at 5%, yielding $140/year
7000-x=$4200 at 10%, yielding $420/year
Sum is $560.