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08-11-2017
Mathematics

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A farmer has both pigs and chickens on his farm. there are 78 feet and 27 heads. how many pigs and how many chickens are there?

Respuesta :

08-11-2017

let p the number of pigs
and c: number of chickens

p + c = 27 ( there is one head for each )

4 p + 2c = 78 ( 4 feet for pigs and 2 for chickens)

p= 12 c= 15

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