Question

2 mile cross country in 5/12 hour what is the speed in miles per hour

Answer 1

To calculate the average speed we have to divide the distance travelled by the time.

In this case the distance is 2 miles and the time is 5/12 hours.

Then, the speed is:

`v=(D)/(t)=\frac{2\text{ miles}}{(5)/(12)\text{ hours}}=2\cdot(12)/(5)\frac{\text{ miles}}{\text{ hour}}=(24)/(5)\frac{\text{ miles}}{\text{ hour}}=4.8\frac{\text{ miles}}{\text{ hour}}`

The speed is 4.8 miles per hour.