human
Joan wants to visit her family who live 480 miles away. If she drives at a rate of 60 mph and takes a lunch break taking 30 minutes, and 2 bathroom breaks taking 15 minutes each, how many hours did it take her to get there?
assistant
How many hours did it take Joan to drive to her family? ** The driving time is 480/60= <<480/60=8>>8 hours
How many minutes did it take Joan to take breaks? ** The time for breaks was 30+15+15=<<30+15+15=60>>60 minutes
How many hours did it take Joan to take rest stops? ** So she spent 60/60=<<60/60=1>>1 hour for rest stops.
How many hours did it take Joan to get there? ** So it took her 8+1=<<8+1=9>>9 hours
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