SOLUTION: Here's my question: Anne-Sophie invested some of her $20,000 in bonds that made an 8% profit and the rest in bonds that made a 7% profit. If the profit on the 8% bonds was $700 m

Algebra ->  Customizable Word Problem Solvers  -> Finance -> SOLUTION: Here's my question: Anne-Sophie invested some of her $20,000 in bonds that made an 8% profit and the rest in bonds that made a 7% profit. If the profit on the 8% bonds was $700 m      Log On

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Question 1040328: Here's my question:
Anne-Sophie invested some of her $20,000 in bonds that made an 8% profit and the rest in bonds that made a 7% profit. If the profit on the 8% bonds was $700 more than the profit on the 7% bonds, how much did Anne-Sophie invest in the 7% bonds?

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = amount invested in 7% bonds
+20000+-+x+ = amount invested in 8% bonds
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+.07x+ = profit from 7% bonds
+.08%2A%28+20000+-+x+%29+ = profit from 8% bonds
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given:
+.08%2A%28+20000+-+x+%29+=+.07x+%2B+700+
+1600+-+.08x+=+.07x+%2B+700+
+.15x+=+900+
+x+=+6000+
She invested $6,000 in 7% bonds
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check:
+.08%2A%28+20000+-+x+%29+=+.07x+%2B+700+
+.08%2A%28+20000+-+6000+%29+=+.07%2A6000+%2B+700+
+.08%2A14000+=+420+%2B+700+
+1120+=+1120+
OK