JhonielD726639 JhonielD726639
  • 03-11-2022
  • Mathematics
contestada

Bea crió algunas vacas y algunos pavos. Crió un total de 28 vacas y pavo. habia 96 patas en total cuantas vacas y cuantos pavos crió bea?

Respuesta :

KorbynO641690 KorbynO641690
  • 03-11-2022

1) Coletando los datos:

Vacas: v

Pavos: p

p+v =28

2p+4v=96 Como las vacas tienen 4 patas e los pavos tienen 2 patas

2) Multiplicando por - 2, la primera ecuación

-2p -2v =-56

2p +4v =96

-------------------

2v = 40

v= 20

3) Substituindo en la primera ecuación

p +20 =28

p =28 -20

p=8

Entonces, había 20 vacas y 8 perus

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