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Mathematics, 11.05.2021 18:50 katwilf1771

A una funcion de cine entraron 15 personas. cada adulto pago 20 y caa niño 10 si lo que se recaudo fue un total de 220 ¿CUANTOS NIÑOS Y CUANTOS ADULTOS ENTRARON A LA FUNCION? x+y=15
20x+10y=220

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