Answer:
A) The average speed of the car is given by the formula:
average speed = distance / time
where distance is measured in kilometers (km) and time is measured in hours (hr).
In this case, the distance is 500 km and the time is 3.5 hrs. Therefore,
average speed = 500 km / 3.5 hrs = 142.857 km/hr (rounded to three decimal places)
Therefore, the average speed of the car is 142.857 km/hr.
B) To find out how far the car will travel in 5 hours, we can use the average speed calculated above.
distance = average speed x time
where time is measured in hours (hr).
In this case, the time is 5 hrs. Therefore,
distance = 142.857 km/hr x 5 hrs = 714.285 km (rounded to three decimal places)
Therefore, the car will travel approximately 714.285 km in 5 hours.
C) To find out how long it will take to travel 750 km, we can use the average speed calculated above.
time = distance / average speed
where distance is measured in kilometers (km) and average speed is measured in kilometers per hour (km/hr).
In this case, the distance is 750 km. Therefore,
time = 750 km / 142.857 km/hr = 5.25 hrs (rounded to two decimal places)
Therefore, it will take approximately 5.25 hours to travel 750 km