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Mathematics, 10.12.2021 14:00 ElDudoso

En una plantación especializada en productos orgánicos, un técnico agrícola
tiene dos fertilizantes que contienen
diferentes concentraciones de nitrógeno,
uno tiene 3% y el otro tiene 11%. ¿Cuántas
libras de cada fertilizante debe mezclar para
obtener 20 libras con una concentración de
9%?

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En una plantación especializada en productos orgánicos, un técnico agrícola
tiene dos fertil...
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