Asked by mar
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?
Answers
Answered by
Reiny
let the number of goats be x
then the number of ducks is 2x
goats:
number of heads = x
number of legs = 4x
ducks:
number of heads 2x
number of legs = 22x) = 4x
x+4x + 2x+4x 99
11x = 99
x = 9
9 goats, 18 ducks
then the number of ducks is 2x
goats:
number of heads = x
number of legs = 4x
ducks:
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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