milagrosoanderow3a6j milagrosoanderow3a6j

11-09-2017
Mathematics

contestada

una granja tiene cerdos pavos en total hay 35 cabezas y 116 patas ¿ccuantos cedos y pavos hay

Respuesta :

janetvr23 janetvr23

11-09-2017

Se utiliza el metodo de suma y resta
Cerdos=x
Pavos= y
x+y=35
4x+2y=116 (se puede simplificar) ---> 2x+y=58

x+y=35
2x+y=58

-1(x+y=35)
1(2x+y=58)
-x-y=-35
2x+y=58
x=23
(23)+y =35
y=35-23 ---->12

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