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ErinWeeks Group Title

Your piggy bank has a total of 46 coins in it; some are dimes and some are quarters. If you have a total of $7.00, how many quarters and how many dimes do you have? (2 points)

  • 2 years ago
  • 2 years ago

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  1. ErinWeeks Group Title
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    HELP A SISTER OUT [:

    • 2 years ago
  2. jarobins Group Title
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    do I get 2 points for answering this?

    • 2 years ago
  3. jarobins Group Title
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    ha just kidding, I think this is a a algebraic substitution problem. Let me just work it out on some paper

    • 2 years ago
  4. ErinWeeks Group Title
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    Thank you jarobins your a big help (: !

    • 2 years ago
  5. merchandize Group Title
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    Let D be the number of dimes, Q be the number of quarters. Write an equation for the total number of coins. 1.D%2BQ=46 Write an equation for the total value of the coins. 2.10D%2B25Q=700 Multiply eq. 1 by -10 and add to eq. 2, -10D-10Q%2B10D%2B25Q=-460%2B700 15Q=240 Q=16 Then from eq. 1, D%2BQ=46 D%2B16=46 D=30 Thirty dimes and sixteen quarters.

    • 2 years ago
  6. jarobins Group Title
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    awe man. merchandise got me. But I think you got it wrong merch

    • 2 years ago
  7. jarobins Group Title
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    o nope, i double checked. Nice

    • 2 years ago
  8. merchandize Group Title
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    i think so its correct...check out

    • 2 years ago
  9. ErinWeeks Group Title
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    Nice , one question though whats up with the %?

    • 2 years ago
  10. merchandize Group Title
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    %2B=+ sign.... is it fine

    • 2 years ago
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