# math

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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

goats:
number of legs = 4x

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

9 goats, 18 ducks

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