Find the average speed in mph for each journey70 miles in 2 hours 115 miles in 1 hour 40 minutes can someone please give me the answer and explain how you got it

(rate) = (distance) / (time)r = d/tSolve for time.t = d/rSubstitute.t = (70 miles) / (70 miles/hour)= (70/70) (miles/(miles/hour))= 1 hourSpeed = distance / time     But be careful with the units and the errors. With some simple algebraic rearangement    Time = Distance / Speed If Distance = 70 miles and Speed = 70 miles / hour. Time = 70 / 70  = 1 and the units stay consistent so that is 1 hour.so if your traveling at that speeds your defied  going really slow to the average speed to goI HOPE THIS HELPS I HAD MY TEACHER HELP ME