To find the average speed of the car, we need to divide the total distance traveled by the time taken to travel that distance.
Average speed = Total distance / Time taken
Here, the total distance traveled by the car is 189 km and the time taken to travel that distance is 4 and 1/2 hours.
To convert 4 and 1/2 hours into a fraction, we can multiply the whole number (4) by the denominator of the fraction (2) and add the numerator (1). This gives us:
4 and 1/2 hours = (4 x 2) + 1 / 2 = 9/2 hours
Now we can substitute the values into the formula:
Average speed = Total distance / Time taken
Average speed = 189 km / 9/2 hours
To divide by a fraction, we can multiply by its reciprocal:
Average speed = 189 km x 2/9 hours
Average speed = 42 km/hour
Therefore, the average speed of the car is 42 km/hour.
A car drove a distance of 189km in 4 and 1/2 hrs. What is his average speed
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