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A teacher grades 3/4 of the class tests in 2 hours and 15 minutes. At this rate, how long will it take the teacher to grade all of the tests?

Respuesta :

ryan9572
45 minutes per 1/4 of the class. 45 times 4 is equal to 3 hours.

Answer:

3 hours

Step-by-step explanation:

2 hours equals 120 minutes add 15 minutes you get 135 minutes when you divide 135/3 you get 45 minutes per quarter so 45*4=180 minutes  180/60=3