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anonymous

  • one year ago

$8,000 is invested in two different accounts earning 3% and 4% interest. If the two accounts earn a total of $295 in interest, how much money was invested at 3%? $2,500 $3,500 $5,500

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  1. Jacob902
    • one year ago
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    Let A be the amount invested at 3%, B the amount at 4%. Total value: 1.A%2BB=8000 Interest: 0.03A%2B0.04B=295 2.3A%2B4B=29500 Multiply eq. 1 by -3 and add to eq. 2, -3A-3B%2B3A%2B4B=-24000%2B29500 highlight%28B=5500%29 Then from eq. 1, A%2B5500=8000 highlight%28A=2500%29

  2. Jacob902
    • one year ago
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    so a

  3. anonymous
    • one year ago
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    thank u

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