monteschavarin300 monteschavarin300

16-08-2020
Mathematics

contestada

A mechanic ground 6 valves in 25 minutes. At that rate,
how long will it take to grind 45 valves of the same kind?

Respuesta :

evelyn222008 evelyn222008

16-08-2020

Answer:

3hours and 12.5 minutes

Step-by-step explanation:

45/6=7.5x25=187.5/60=3hours and 12.5 minutes

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