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anonymous

  • one year ago

the total value of a collection of dimes and nickels is $2.70. if the total number of coins is 39, how many of each coin is there?

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  1. anonymous
    • one year ago
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    hold on im trying to figure it out

  2. anonymous
    • one year ago
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    thanks

  3. anonymous
    • one year ago
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    it is a pain

  4. anonymous
    • one year ago
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    yeaah lol

  5. anonymous
    • one year ago
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    \[\large \sf d+n=39 \\\large \sf .1d+.05n=2.7\]

  6. anonymous
    • one year ago
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    soooo, there is half a nickel??

  7. anonymous
    • one year ago
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    15 dimes 24 nickels?

  8. anonymous
    • one year ago
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    thanks man

  9. anonymous
    • one year ago
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    Woah there, no direct answers. @.Gjallarhorn.

  10. anonymous
    • one year ago
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    oh ok

  11. anonymous
    • one year ago
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    lets see.. 15 dimes is 1.50 24 nickels 1.20 addem and you get 2.70

  12. anonymous
    • one year ago
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    i know im explaining

  13. anonymous
    • one year ago
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    And the method you used to figure it out?

  14. anonymous
    • one year ago
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    15 dimes and 24 nickels add up to 39 coins :)

  15. anonymous
    • one year ago
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    That isn't a method, my friend :)

  16. anonymous
    • one year ago
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    i just used guess and eliminate

  17. anonymous
    • one year ago
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    and i got the answer and i explained why that was the answer by adding the values

  18. anonymous
    • one year ago
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    And that's the problem. We're here to help the asker UNDERSTAND, which your method doesn't do. Your method doesn't work on anything but things like this. With such a small margin of answers, it's easy to guess around and get the answer.

  19. anonymous
    • one year ago
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    I mean, have you ever had a teacher tell you, "Guess around till you get the answer"? /:

  20. anonymous
    • one year ago
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    Number of dimes: x Number of nickels: (39-x) 10x + 5(39-x) = 270 (cents makes sense) 5x = 75 x = 15, the number of dimes. 24 Nickels checking.... 10*15+5*24 = 270cents or $2.70 THERE YA GO @bearclaw heres the source http://www.algebra.com/algebra/homework/word/coins/Word_Problems_With_Coins.faq.question.879243.html so your final answer is 15 dimes and 24 nickels, bearclaw. Have a nice day! :)

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