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Mathematics, 13.04.2021 19:00 wendymtz2004

Dos familias fueron al cine, la familia uno está formada por los padres y tres niños quienes pagaron $310 por las entradas, la familia dos está compuesta por los padres, la abuela y cuatro niños ellos pagaron $440 por las entradas. ¿Cuánto cuesta la entrada al cine de un adulto y de un niño?

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Dos familias fueron al cine, la familia uno está formada por los padres y tres niños quienes pagaron...
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