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29 votes
29 votes
Need help with number 2 please

Need help with number 2 please-example-1
User Valarie
by
2.5k points

1 Answer

18 votes
18 votes

9514 1404 393

Answer:

  • at 5.4% — $10,000
  • at 8% — $5000

Explanation:

It is convenient to use a variable for the amount invested at the higher rate. If that variable is x, then the amount invested at the lower rate is (15000-x) and Anna's total annual interest is ...

0.054(15000 -x) + 0.08x = 940

0.026x +810 = 940

0.026x = 130

x = 130/0.026 = 5000

Anna invests $5,000 at 8% and $10,000 at 5.4%.

User ZeWaren
by
3.1k points
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