SOLUTION: Here's my problem: Rosalinda invested some of her $15,000 in bonds that made a 6% profit and the rest in bonds that made a 10% profit. If the profit on the 10% bonds was $1,000 m

Question 1040316: Here's my problem:
Rosalinda invested some of her $15,000 in bonds that made a 6% profit and the rest in bonds that made a 10% profit. If the profit on the 10% bonds was $1,000 more than the profit on the 6% bonds, how much did Rosalinda invest in the 6% bonds?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Rosalinda invested some of her $15,000 in bonds that made a 6% profit and the rest in bonds that made a 10% profit. If the profit on the 10% bonds was $1,000 more than the profit on the 6% bonds, how much did Rosalinda invest in the 6% bonds?
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Quantity:: s + t = 15000 dollars
Interest:: 10t = 100000 + 6s
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Modify for elimination:
10t + 10s = 150000
10t - 6s = 100000
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Subtract and solve for "s"::
16s = 50000
s = $3125 (amt. invested at 6%)
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t = 15000-3l25 = $11,875 (amt. invested at 10%)
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Cheers,
Stan H.
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