uzielF uzielF
  • 22-05-2023
  • Mathematics
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El coste de la entrada a un concierto de música popular fue de 162 dólares para 12 niños y 3 adultos. La entrada era de 122 dólares para 8 niños y 3 adultos en otro concierto de música. ¿Cuánto costó la entrada para cada niño y adulto?​

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