Answer :
Speed = Distance / time.
time = Distance / speed.
time = 60 miles / (40 miles per hour) = 3/2 = 1.5 hours.
time = Distance / speed.
time = 60 miles / (40 miles per hour) = 3/2 = 1.5 hours.
using the formula
RxT= D
rate, time, distance
40x=60
x=60/40
x= 1.5 hours