Farmer Brown has ducks and cows she noticed that…

Discussion in 'Mathematics' started by Jardin, Oct 31, 2018.

  1. Jardin

    Jardin New Member

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    Farmer Brown has ducks and cows she noticed that there are 32 feet and 12 head how many of the animals are ducks and how many are cow
     
  2. Tagore

    Tagore New Member

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    Call cows C and ducks D4C +2D=32 [for the feet]C + D=12 [for the heads]So from the second C=12-D substitute into the first 4 (12-D)+2D=3248-4D +2D=322D=16 D=8 ducksC=4 cows
     

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