Assuming that the car moves at a constant speed, you can use the standard formula for speed:
distance = speed x time
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distance traveled=60 km.time =45 minutes=45/60 hrs=0.75 hrsthen speed =distance traveled/total time=60/ 0.75 km/hr=80 km/hr
The car is moving at 45 mph (90 for 2, 225 for 5) After 9 hrs, car will have travelled 45 x 9. (you did not expect me to do all your homework?)
To calculate average speed, you would divide the total distance traveled by the total time taken. In this case, the total distance is 120 kilometers and the total time is 3 hours. Therefore, the average speed would be 120 km / 3 hrs = 40 km/hr.
21 km/h
195 kilometres.