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Question

2.) Sally Leadfoot was pulled over on her way from Syracuse to Ithaca by an officer claiming she was speeding. The speed limit os 65 mi/hr and Sally had traveled 97 km in 102 minutes. How fast was Sally's average speed? Does she deserve a ticket?

Answer 1

Sally's rate (speed) was

 

97 km

-----------

102 min

 

Convert km to miles and minutes to hours.  There are .62 miles in a kilometer, and 60 minutes in an hour.

 

97 km            .62 mi       60 min

-----------   *  ---------  *  ----------

102 min          km            hour

 

This leaves the units in miles per hour, and the result is 35.37.  So Sally was not speeding.