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goformit100

  • 3 years ago

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

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  1. waterineyes
    • 3 years ago
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    How many legs peawingspan has??

  2. dmezzullo
    • 3 years ago
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    @waterineyes can i put wut i think it is then u correct me?

  3. dmezzullo
    • 3 years ago
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    wut is a peawingspan anyways?

  4. goformit100
    • 3 years ago
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    its a bird

  5. dmezzullo
    • 3 years ago
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    Oh so it has 2 legs then

  6. waterineyes
    • 3 years ago
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    Okay.. Yeah Sure @dmezzullo

  7. goformit100
    • 3 years ago
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    yes then ?

  8. dmezzullo
    • 3 years ago
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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

  9. waterineyes
    • 3 years ago
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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..

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