How far in miles would a car travel in 10 seconds at and ave

How far (in miles) would a car travel in 10 seconds at and average speed of 50 mph?

Solution

How far (in miles) would a car travel in 10 seconds at
an average speed of 50 mph?
---------------------------------
(50 miles/hour)(1 hr/3600 sec) = (50/3600)miles/sec
---
Multiply by 10 to get 10(1/72) miles per 10 seconds
---
Ans: (10/72) = (5/36) = 0.1389 miles per 10 seconds