<PRE><B>Question 179512</B>
Mr. X invested an amount for 7% and twice that amount for 8%. At the end of the year the income was $11500. What was the amount invested at 7%? amount invested at 8%? 
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Equation:
interest + interest = 11500
0.07x + 0.08(2x) = 11500
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Multiply thru by 100 to get:
7x + 16x = 1,150,000
23x = 1,150,000
x = $50,000 (amt. invested at 7%)
2x = $100,000 (amt. invested at 8%)
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Cheers,
Stan H.
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