SOLUTION: Part of a $8, 000 inheritance was invested at 10% interest and the rest was in- vested at 12% interest. If the annual income from these investments is $810 , how much was invested

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Question 1104472: Part of a $8, 000 inheritance was invested at 10% interest and the rest was in- vested at 12% interest. If the annual income from these investments is $810 , how much was invested at each rate?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Part of a $8, 000 inheritance was invested at 10% interest and the rest was in- vested at 12% interest. If the annual income from these investments is $810 , how much was invested at each rate?
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Equation:
int + int = 810
0.10*x + 0.12(8000-x) = 810
10x + 12*8000 - 12x = 81000
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-2x = 81000 - 96000
-2x = -15000
x = $7500 (amt. invested at 10%)
8000-x = $500 (amt. invested at 12%)
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Cheers,
Stan H.
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