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Posted by on Tuesday, January 25, 2011 at 5:33am.

A farm raises a total of 220 chickens and pigs. The number of legs of the stock in the farm totals 520. how many chickens and pigs are there on the farm.

using systems of equations to solve

  • algebra - , Tuesday, January 25, 2011 at 8:55am

    number of chickens --- c
    number of pigs ---- p

    c+p = 220
    2c + 4p = 520 or c + 2p = 260

    subtract then
    p = 40
    back into the first
    c+40 = 220
    c = 180

    180 chickens, 40 pigs

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