Chad's family is renting a cabin at Greenbow State Park, which is 390 miles from where they live. They plan to leave early in the morning on Saturday and stop after 4 hours to have lunch. They will complete the trip in the afternoon. They plan to drive at an average speed of 60 miles per hour. How many hours will they drive in the afternoon?
Write your answer as a whole number or a decimal.
hours
To find the driving time in the afternoon, we need to subtract the time they will spend having lunch from the total driving time.
They will spend 4 hours having lunch, so the remaining driving time is 390 miles - 4 hours = <<390-4=386>>386 miles.
At an average speed of 60 miles per hour, they will drive for a total of 386 miles / 60 miles per hour = 6.43 hours.
Since they cannot drive for a fraction of an hour, they will drive for 6 hours in the afternoon. Answer: <<6=6>>6 hours.