Question

3 multiple choice 0.5 points video (timestamp ~9:23): in the example, the total distance traveled is 18 km in 2 hr. what is the average speed? 18 km/hr 1 km/hr 8 km/hr 9 km/hr

Explanation:

Step1: Recall average speed formula

Average speed = $\frac{\text{Total Distance}}{\text{Total Time}}$

Step2: Substitute given values

$\text{Average speed} = \frac{18\ \text{km}}{2\ \text{hr}}$

Step3: Calculate the result

$\text{Average speed} = 9\ \text{km/hr}$

Answer:

9 km/hr