Edward A. answered 04/19/18
Tutor
4.9
(17)
Math Tutor, Retired Computer Scientist and Technical Communicator
John, ”how fast“ means “how many miles per hour”.
whenever you see the word “per”, it means “divided by”.
so, you need to calculate
(#miles) / (#hours)
go ahead, divide it, and check to see whether they’ll get a speeding ticket.