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Mathematics, 07.07.2019 22:00 luisgonz5050

Con la finalidad de conservar el medio ambiente una de las docentes del 2do grado solicita a los estudiantes que traigan pilas usadas para enviarlas al centro de reciclaje, puesto que estas se acumulan en los hogares y llegan a parar a la basura. las pilas contienen metales y sustancias químicas tóxicas como el mercurio; una sola pila podría contaminar hasta 600 000 litros de agua. a. sabiendo que el aula tiene 30 estudiantes, y la razón entre los que trajeron pilas y los que no trajeron es como 2 es a 3. ¿cuántos estudiantes trajeron pilas?

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