Seth travels with constant speed v=dtv=dt
then v=157
1=x3600v=157.1=x3600where xx is the distance traveled in 1 hour.
So his velocity would be x miles/hour.
By computing x=3600⋅157.1=63.047x=3600⋅157.1=63.047
Seth travels at a speed of 63.047miles/hour