SOLUTION: 2.) Sally Leadfoot was pulled over on her way to Syracuse to Ithaca by an officer claiming she was speeding. The speed limit is 65 mi/hr and Sally had travel 97km in 102 minutes. H

Question 986992: 2.) Sally Leadfoot was pulled over on her way to Syracuse to Ithaca by an officer claiming she was speeding. The speed limit is 65 mi/hr and Sally had travel 97km in 102 minutes. How fast was Sally's average speed? Does she deserve a ticket?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Maybe, maybe not. If she stopped at a rest area for an hour and had to travel the entire 97 km in 42 minutes, then yes indeed she would have been exceeding the speed limit at some point while she was actually moving. But if she travelled at her average speed or very nearly her average speed for the entire trip, she would have only been going about 35 miles per hour at any given time. Average speed is the total distance traveled by the amount of time it took, even if you stand still or go very slowly for some period of time.

Had the problem read, "...Sally had traveled 97 km in 102 minutes at a constant speed.", then there would have been no ambiguity to this question.

John

My calculator said it, I believe it, that settles it

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