Question

Seth traveled one mile in 57.1 seconds. About how fast does Seth travel in miles per hour?

Answer 1

Since we need to convert “miles per second” to “miles per hour,”  we first need to find out how many seconds there are in a hour.
We know that there are 60 seconds in a minute, and if we wanted to do an hour we would have to do 60 * 60 which is 3600 seconds, therefore, 
1 mi/57.1 sec = (1 mi/ 57.1 sec)(3600 sec/1 hour)

                        = (3600/57.1) mi/hours

                        = 63.047 mi/hours