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AleksAgata [21]
3 years ago
13

Una persona invirtió $25000 en dos cuentas bancarias,una de estas paga el 5% y la otra el 6% de interés simple. Si la persona re

cibió $1440 en un año ¿que cantidad invirtió en cada cuenta?
Mathematics
1 answer:
valkas [14]3 years ago
7 0

Answer:

Esta persona invirtió $ 6000 a la cuenta bancaria que paga 5 % de interés simple anual y $ 19000 a la cuenta bancaria que paga 6 % de interés simple anual.

Step-by-step explanation:

Esta persona invierte x a la cuenta bancaria que paga 5 % de interés simple anual y 25000-x a la cuenta bancaria que paga 6 % de interés simple anual. Recibe 1440 como consecuencia de las ganancias de las dos cuentas, es decir:

\frac{5\cdot x}{100} + \frac{6\cdot (25000-x)}{100} = 1440 (1)  

Ahora procedemos a resolver la ecuación resultante:

5\cdot x + 150000-6\cdot x = 144000

150000-144000 = 6\cdot x - 5\cdot x

x = 6000

En consecuencia, esta persona invirtió $ 6000 a la cuenta bancaria que paga 5 % de interés simple anual y $ 19000 a la cuenta bancaria que paga 6 % de interés simple anual.

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