A student ran 100yd in 12 seconds. At what speed did the student run in mph

17.057 mph

Step-by-step explanation:

Speed = Distance Travelled : Time Taken

As we know that: 1 yard = 0.000568 miles so

100 yard = 0.0568 miles

Time=12 seconds

To convert time from seconds to hour, we divide it 3600 because 1 minute is equal to 60 seconds and 1 hours is equal to 60 minutes so 60 * 60 = 3600. Thus:

Time in hours = 12 : 3600 = 0.00333 hour

Speed = 0.0568 : 0.00333

Speed = 17.057 miles per hour