One of the fastest times ever recorded for the 50 yard dash is 5.2 seconds. The following expression can be used to find how many miles per hour that is.
50 yd
3 ft
52 sec 1 vd
5,280 ft
1 hr
What is the missing factor?
1 mile
2
60 min
x
X
x
X
1 mile
1,760 yd
1.760 yd
60 sec
1 min
60 sec