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8_murik_8 [283]
2 years ago
8

La matemática financiera experimentó grandes avances con la creación de la banca y los negocios creados por los emprendedores. E

ste tipo de matemática se puede encontrar en las transacciones que realizan los concesionarios de carros, como en el siguiente caso: el costo anual (C de operación) de un automóvil nuevo es C= f + cm; f es el costo fijo (depreciación, seguros, impuestos), c es el costo de operación por kilómetro y m es el número de kilómetros recorridos. El costo total por 15000 Km es de 3000 USD, y el costo por 20000 Km es 3500 USD. Encuentra el costo fijo y el costo por kilómetro.
2. Resuelve aplicando sistemas de ecuaciones 2x2.
Mathematics
1 answer:
Tresset [83]2 years ago
8 0

Answer:

c = \frac{1}{10}

f= 1500

Step-by-step explanation:

Tenemos la siguiente ecuación

C = f+cm

Tenemos los siguientes valores para m=15000, c = 3000 y para m = 20000, c=3500. Es decir, tenemos las siguientes ecuaciones

3000=f+c15000, 3500=f+c20000

Si restamos la segunda ecuación de la primera, tenemos que

3500-3000 = f-f+(20000c-15000c)

Luego

500 = 5000c

Entonces c = \frac{500}{5000} = \frac{1}{10}

Si tomamos la primera ecuación, tenemos que 3000-\frac{15000}{10} = f. Es decir,

3000-1500 = f = 1500

Esta solución, al plantear 2 ecuaciones y dos incógnitas, plantea un sistema dos por dos.

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