SOLUTION: $1150 is invested, part of it at 12% and part of it at 11%. The total yield was $113.75. How much was invested at each rate?

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Question 847681: $1150 is invested, part of it at 12% and part of it at 11%. The total yield was $113.75. How much was invested at each rate?
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
$113.75 is not a possible yield.
I found a problem very similar to this where the yield is $133.75, perhaps that is what was meant.
If so we have x*(.12) + (1150-x)*(.11) = 113.75
We find x = 725 and y = 425.