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3 years ago

12

german tiene 13 billetes en su bolsillo , algunos son de $2000 y otros de $5000 si en total German tiene $40.000 ¿Cuantos billet

es de cada denominacion tiene German?

1 answer:

Rufina [12.5K]3 years ago

8 0

Answer:

hay 10 billetes de 2000

hay 4 billetes de 5000

Step-by-step explanation:

Planteamos las siguientes ecuaciones...:

x= billetes de 2000

y= billetes de 5000

ecuaciones :

1) x+y = 14

2) 2000x + 5000y =40000

despejamos primera ecuacion y remplazamos en segunda :

1) x= 14-y

2) 2000(14-y) + 5000y = 40000

28000- 2000y+5000y = 40000

3000y= 40000 - 28000

y= 4

reemplazamos este valor en primera ecuacion:

x+y = 14

x+ 4= 14

x= 10

ahora reemplazamo valor de X y valor de Y

2000(10) + 5000(4) =40000

40000 =40000

hay 10 billetes de 2000

hay 4 billetes de 5000

Espero que esto te ayude

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