What was the average speed in km/h of a car that travels 400.0 km in 4.5h?
distance = rate x time
400 km = rate x 4.5 hours
Solve for rate.
395.5
88.89 km/hr
1800
To calculate the average speed of a car, we need to divide the total distance traveled by the total time taken. In this case, the car traveled 400.0 km in 4.5 hours.
To find the average speed in km/h, we can use the formula:
Average speed (km/h) = Total distance (km) / Total time taken (h)
Plugging in the values, we have:
Average speed (km/h) = 400.0 km / 4.5 h = 88.89 km/h (rounded to two decimal places)
Therefore, the average speed of the car was approximately 88.89 km/h.