SOLUTION: when david and his family visited his grandparents they drove 261 miles round trip the drive took 2.5 hours what was there average speed? they drove home on the same road but en

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Question 995950: when david and his family visited his grandparents they drove 261 miles round trip the drive took 2.5 hours what was there average speed?
they drove home on the same road but encountered traffic if their average speed was 45 mph how long did it take?
how many hours and minutes was this?

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
when david and his family visited his grandparents they drove 261 miles round trip the drive took 2.5 hours what was there [sic] average speed?
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To find mi/hr, divide the miles by the hours.
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they drove home on the same road but encountered traffic if their average speed was 45 mph how long did it take?
d = r*t
t = d/r