I run 2464 feet in 22.4 seconds. How many mph is that? Show work.

The answer is 75mph.

Solution:

Convert Feet per Second to mph | Study.com via kwout

2464ft / 22.4sec x 1mi / 5280ft x 60sec / 1min x 60min / 1hr = 8,870,400/11,8272 = 75mph

Where:

1mi = 5280ft
1min = 60sec
1hr = 60 min

In 1959 the international yard and pound agreement (between the United States and countries of the Commonwealth of Nations) defined a yard as being exactly 0.9144 metres, which in turn defined the foot as being exactly 0.3048 metres (304.8 mm).

mi = ft * 0.00018939

Miles is a unit of length equal to 1760 yards.

You can use this Feet per second to Miles per hour (ft/s to mph) conversion calculator for Speed conversions with additional tables and formulas.

Tuesday, March 07 2017
Source: http://www.metric-conversions.org/length/feet-to-miles.htm