Catherine's dental appointment took 3/4 hour. She left the dentist at 11:10 A.M. What time did her appointment begin?

F. 11:40A.M.
G. 11:55A.M.
H. 10:25A.M.
J. 10:55A.M

What is your answer?

I don't get how much 3/4 is in an hour.

You need to learn to use an analog clock.

http://www.myschoolhouse.com/courses/O/1/12.asp

Notice that the clock is divided into 60 minutes or 12 sections. 1/4 of an hour is 15 minutes. 1/2 hour is 30 minutes. How many minutes in 3/4 of an hour?

3/4 is 45 minutes?

Right and right!

To determine the time Catherine's dental appointment began, we need to subtract 3/4 hour (45 minutes) from her departure time of 11:10 A.M.

One way to do this is to convert 3/4 hour to the equivalent number of minutes. Since 1 hour is equal to 60 minutes, 3/4 hour can be calculated as (3/4) * 60 = 45 minutes.

Next, subtract the 45 minutes from 11:10 A.M.:
11:10 A.M. - 45 minutes = 10:25 A.M.

Therefore, Catherine's dental appointment began at 10:25 A.M.

The correct answer is H. 10:25 A.M.