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Mathematics, 08.05.2021 02:50 averyrichard101

Un dispositivo especial permite ahorrar un 30% de combustible en un motor; un segundo dispositivo, si actúa sol, permite un ahorro de un 50% y un tercero, también si actúa solo, de un 20 %. Si se instalan los tres dispositivos juntos en el motor ¿Qué porcentaje de ahorro de combustible puede obtenerse?

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Un dispositivo especial permite ahorrar un 30% de combustible en un motor; un segundo dispositivo, s...
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