The duration of the flight as a mixed number is 7 3/4 hours
From the question, we are told that a businesswoman's flight leaves Montgomery at 2PM and arrives in Hartford at 9:45 PM, since there is 1 hour between 2PM and 3PM, hence;
The total number of hours between 2PM and 9PM is 7 hours
From 9PM to 9:45PM is 45 minutes
Taking the sum of the total tie gives:
Total time = 7 + 45/60
Total time = 7 3/4 hours
Hence the duration of the flight as a mixed number is 7 3/4 hours
Learn more on mixed number here: https://brainly.com/question/21610929
