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March 27, 2017

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write a system of two equation and use them to solve the following problem: two farmers were discussing how many chickens and cows they would purchase at market. the first farmer says to the second, I have just purchased 30 new heads and 100 feet. how many chicken and how many cows did the farmer purchase?

  • math - ,

    X new chickens
    Y new cows.

    X + Y = 30
    2X + 4Y = 100

    2X + 2Y = 60
    2Y = 40
    Y = 20
    X = 30 - Y = 10

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