If you're planning a trip to atlanta georgia which is 279 miles from home and you plan to drive at an average speed of 62 mph, and stop to take a 45 minute break, when should you leave home in order to arrive in atlanta at 3:00pm

First find how long it'll take total. Do this by finding how many hours of driving it'll take:

279/62 = 4hours 30 minutes

Add your 45 minute break:

4hours 30 minutes + 45 minutes = 5 hours 15 minutes

Then backtrack from 3:00 p. m.

3:00 - 3 hours = 12:00 a. m. - 2 hours 15 minutes = 9:45 a. m.