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Romanza tiene 9300 pesos en billetes de \( \$ 1000, \$ 500 \) y \( \$ 200 \). Si el númer ee billetes de 500 excede en 2 a los de 1000 y en 3 a los de 200 , ¿cuánto illetes de cada nominación tiene Romanza?

Ask by Gough Delgado. in Mexico
Feb 27,2025

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Romanza tiene 5 billetes de $1000, 7 billetes de $500 y 4 billetes de $200.

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Beyond the Answer

Para resolver el problema, definimos las variables: - Sea \( x \) el número de billetes de 1000. - Entonces, los billetes de 500 son \( x + 2 \) y los de 200 son \( x - 1 \) (pues si el de 500 excede en 3 a los de 200, esto significa que \( x + 2 - 3 = x - 1 \)). La ecuación que representa el total de dinero es: \[ 1000x + 500(x + 2) + 200(x - 1) = 9300 \] Resolviendo la ecuación: \[ 1000x + 500x + 1000 + 200x - 200 = 9300 \] \[ 1700x + 800 = 9300 \] \[ 1700x = 9300 - 800 \] \[ 1700x = 8500 \] \[ x = 5 \] Por lo tanto, Romanza tiene: - \( x = 5 \) billetes de 1000 (total \( 5000 \)), - \( x + 2 = 7 \) billetes de 500 (total \( 3500 \)), - \( x - 1 = 4 \) billetes de 200 (total \( 800 \)). Así que Romanza tiene 5 billetes de \( \$ 1000 \), 7 billetes de \( \$ 500 \) y 4 billetes de \( \$ 200 \).

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