Question

The track of a roller coaster is 1.265 miles long. The ride lasts for 2.3 minutes. What is the average speed of the roller coaster in miles per hour?

Answer 1

Answer : The average speed of the roller coaster is, 33 mile/hr

Explanation :

Average speed : It is defined as the ratio total distance to total time.

Formula used :

$\text{Average speed}=\frac{\text{Total distance}}{\text{Total time}}$

As per question,

Total distance traveled = 1.265 miles

Total time taken = 2.3 min = 0.038 hr    (1 hr = 60 min)

Now put all the given values in the above formula, we get:

$\text{Average speed}=\frac{\text{Total distance}}{\text{Total time}}$

$\text{Average speed}=\frac{1.265mile}{0.038hr}=33.3mile/hr\approx 33mile/hr$

Therefore, the average speed of the roller coaster is, 33 mile/hr

Answer 2

The average speed of the roller coaster in miles per hour is 33.29 miles per hour

Given:

Total distance travelled = 1.265 miles

Total time taken = 2.3 minutes

Convert 2.3 minutes to hour

60 minutes = 1 hour

2.3 minutes = 2.3 / 60

= 0.038 hour

Average speed = Total distance travelled / Total time taken

= 1.265 miles / 0.038 hour

= 33.289473684210

Approximately, 33.29 miles per hour

Therefore, the average speed of the roller coaster in miles per hour is 33.29 miles per hour

Read more:

https://brainly.com/question/11753352