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Mathematics, 12.12.2020 15:50 dazesreplayy2451

Arando los campos. Sally administra la granja familiar en Boone, Iowa. Ella pueda arar los campos de la granja en 20 horas. Su hija Brenda puede hacerlo en 30 horas. Si ambas usan
tractores iguales, ¿cuánto les tomará arar los campos de la granja trabajando juntas?

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Arando los campos. Sally administra la granja familiar en Boone, Iowa. Ella pueda arar los campos d...
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