It takes 45 minutes or forty-five over sixty of an hour to cook a chicken. How many fourths of an hour is that?
A. 1
B. 2
C. 3
D. 4
45/60 = (45/15) / (60/15) = 3/4
To convert 45 minutes to hours, we divide by 60 (since there are 60 minutes in an hour).
45 minutes / 60 minutes per hour = 0.75 hours.
Now, we need to find how many fourths of an hour 0.75 hours is.
To do that, we divide 0.75 by 1/4.
0.75 / (1/4) = 0.75 * (4/1) = 0.75 * 4 = 3.
Therefore, 0.75 hours is equivalent to 3 fourths of an hour, which means the answer is C. 3.
To determine how many fourths of an hour 45 minutes or forty-five over sixty of an hour is, you can convert 45 minutes into hours and then express it as a fraction.
There are 60 minutes in an hour, so to convert 45 minutes into hours, divide 45 by 60:
45 minutes ÷ 60 minutes = 0.75 hours
Now, express 0.75 hours as a fraction. Since there are 4 quarters in an hour, we need to determine how many quarters are in 0.75 hours.
To do this, multiply 0.75 by 4:
0.75 hours × 4 = 3 quarters
Therefore, 45 minutes or forty-five over sixty of an hour is equal to 3 fourths of an hour.
The answer is C. 3