Tyson Gay's best time to run 100.0 meters was 9.69 seconds. What was his average speed during this run, in miles per hour? (3.281ft=1 m)(1 mile=5280 ft)
+128406 First....calculate the number of feet in 100m = 100 * 3.28 ft = 328 ft
Divide the by the number of seconds = 328/ 9.69 ≈ 33.85 ft /sec
Multiply this by the number of seconds in one hour = 3600 sec * 33.85 ft /sec = 121860 ft
Divide this by the number of feet in a mile (121860 ft / hr) / (5280 ft / mile) ≈ 23.08 mph
