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mote1985 [20]
3 years ago
14

¿Cuál es la edad de Jimena? Si su papá tiene 27 años más que ella y su mamá tiene 34 años . Además se sabe que la suma de las tr

es edades es igual a la diferencia de 10 veces la edad de Jimena, menos 3 años.
Mathematics
1 answer:
marissa [1.9K]3 years ago
8 0

Answer:

Jimena tiene 8 años de edad.

Step-by-step explanation:

Sean x, y, z las edades de Jimena, su padre y su madre. A continuación, traducimos cada oración relevante del enunciado a expresiones matemáticas:

(i) <em>Si su papá tiene 27 años más que Jimena</em>:

y = x+27 (1)

(ii) <em>Su mamá tiene 34 años</em>:

z = 34 (2)

(iii) <em>La suma de las tres edades es igual a la diferencia de 10 veces la edad de Jimena, menos 3 años</em>:

x+y+z = 10\cdot x-3 (3)

Al aplicar (1) y (2) en (3), tenemos la siguiente ecuación resultante:

x +(x+27)+34 = 10\cdot x-3

2\cdot x +61=10\cdot x-3

8\cdot x = 64

x = 8

Jimena tiene 8 años de edad.

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