Seth traveled 1 mile in 57.1 seconds. About how fast does Seth travel in mph?

Considering that Seth travels with constant speed v = dt v = dt, then v = 157.1 = x3600 v = 157.1 = x3600 where xx is the distance traveled in 1 hour. So his velocity would be x miles/hour. By computing x = 3600⋅1 57.1 = 63.047 x = 3600⋅1 57.1 = 63.047, thus Seth travels at a speed of 63.047miles/hour 63.047miles/hour

The answer is 760 mph