SOLUTION: If a bicyclist rides at 10 miles per hour for 10 minutes, and then speeds up to 20 miles per hour for the next 20 minutes, what is her average speed for this ride?
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Question 327879: If a bicyclist rides at 10 miles per hour for 10 minutes, and then speeds up to 20 miles per hour for the next 20 minutes, what is her average speed for this ride?
You can put this solution on YOUR website! If a bicyclist rides at 10 miles per hour for 10 minutes, and then speeds up to 20 miles per hour for the next 20 minutes, what is her average speed for this ride?
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Find the total distance, divide it by the total time.
10 mph*(10/60) + 20 mph*(20/60) = 500/60 miles
= 25/3 miles
Time = 1/2 hour
--> 50/3 mph
=~ 16.67 mph
