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

Answer Link

Otras preguntas

Which of these is the correct word equation for the reaction, 2C4H10 (g) + 1302 (g) —> 8CO2 (g) + 10H2O (g)? A) Water vapor and carbon dioxide gas react to f
If 89.6 joules of heat 20.0 grams of iron from 30.0 C to 40.0 C, what is the specific heat of the iron in J/g.C?
6. The temperature of a mass of tin increases from 24.0 degrees C to 34.0 degrees C when 250 J of thermal energy are added. Calculate the mass of the tin. The
CAN ANYONE HELP THANK YOU VERY MUCH WHO EVER HELPS
Determine the basic oxidationnumber for elements in s and porbitals​
True or False? Agriculture refers only to the crops that farmers grow in order to sustain the human population. 1Points A True B False
transmit impulses from other neurons to the cell body while transmit impulses away from the cell body.
Hellllllllllllllllllllllllllllllllllllp
what is the graph of 3y-5x<-6?
Is it a square, rhombus, or a rectangle? Why?