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goformit100 Group Title

There are deer and peawingspans in a zoo. By counting heads they are 80. The number of their legs is 200. How many peawingspans are there ? A. 20 B. 30 C. 50 D. 60

  • one year ago
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  1. waterineyes Group Title
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    How many legs peawingspan has??

    • one year ago
  2. dmezzullo Group Title
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    @waterineyes can i put wut i think it is then u correct me?

    • one year ago
  3. dmezzullo Group Title
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    wut is a peawingspan anyways?

    • one year ago
  4. goformit100 Group Title
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    its a bird

    • one year ago
  5. dmezzullo Group Title
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    Oh so it has 2 legs then

    • one year ago
  6. waterineyes Group Title
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    Okay.. Yeah Sure @dmezzullo

    • one year ago
  7. goformit100 Group Title
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    yes then ?

    • one year ago
  8. dmezzullo Group Title
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    Ok so theres 40 peawingspans and 40 deer, so deer have 4 legs, so 40 times 4 = 160 then the peawingspans have 2 legs and there are 40 of them so 20 so then there is ur other 40 u were missing so the answer would be 40. but where did i go wrong @waterineyes

    • one year ago
  9. waterineyes Group Title
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    Just system of linear equations: x : deer and y : peawingspan.. x + y = 80 4x + 2y = 200 So: 4x + 4y = 320 4x + 2y = 200 2y = 120 y = 60..

    • one year ago
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