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A group of goats&duck s hav a total of 99 heads n legs among thm. Ther r twice as many ducks as ther r goats. How many r ther of ech?

  • math -

    let the number of goats be x
    then the number of ducks is 2x

    number of heads = x
    number of legs = 4x

    number of heads 2x
    number of legs = 22x) = 4x
    x+4x + 2x+4x 99
    11x = 99
    x = 9

    9 goats, 18 ducks

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