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Verizon [17]
3 years ago
9

Un granjero tiene en su finca un total de 330 animales entre gallinas y cerdos y un conteo de las patas de estos animales arrojo

un total de 878 patas. ¿Cuantas gallinas y cuantos cerdos posee el granjero?
Mathematics
1 answer:
Monica [59]3 years ago
8 0

Answer:

La respuesta a tu pregunta es:  El granjero tiene 221 gallinas y 109 cerdos

Step-by-step explanation:

Datos

Animales totales = 330 entre gallinas y cerdos

numero total de patas = 878 patas

# de gallinas = ?

# de cerdos = ?

Gallinas = g

Cerdos = c

Sabemos que las gallinas tienen 2 patas y los cerdos tienen 4 patas

Ecuaciones

                              g + c = 330     (I)

                           2g + 4 c = 878   (II)

Resolver las ecuaciones por eliminación

Multiplicar I por -4

                           -4g - 4c = -1320

                            2g + 4c =   878

                           -2g        = -442

                              g = -442/ -2

                              g = 221

Sustituir g en I

                        221 + c = 330

                        c = 330 - 221

                       c = 109

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Step-by-step explanation:

Here is the correct question.

Raquel can type an average of 63 words per minute. Rick can type 73 words per minute. how many more words can Rick type than Raquel in 135 minutes? Jared chose B as the correct answer. How did he get that answer? Jared said the answer is 4599. How did he get that answer?

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