ashleymohamad ashleymohamad

19-09-2018
Mathematics

contestada

On a farm there are horses and chickens. There are total of 40 heads and 146 legs. How much horses are there in the farm?

Respuesta :

jaay24267 jaay24267

19-09-2018

20 horses in the farm

Answer Link

wolf1728 wolf1728

19-09-2018

A) h + c = 40

B) 4h + 2c = 146 then multiplying A) by -2

A) -2h -2c = -80 then adding both equations

2h = 66

There are 33 horses and 7 chickens

DOUBLE CHECK

33*4 + 7*2 = 132 + 14 = 146 legs

Answer Link

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