SOLUTION: Bob wants to hike a 60-mile trail in the country. He could hike 10 mph for the first 2 hours and 30 mph the rest of the way or go 20 mph the whole way. Which is faster? By how much

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Question 1042457: Bob wants to hike a 60-mile trail in the country. He could hike 10 mph for the first 2 hours and 30 mph the rest of the way or go 20 mph the whole way. Which is faster? By how much?
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = distance in miles traveled the first 2 hrs

mi
----------------
The rest of the way is:
mi

hrs
-----------------
His total time doing it this way is:
hrs
( or 3 hrs and 20 min )
------------------------------
20 mi/hr the whole way:

hrs
It is quicker to go 20 mi/hr the whole way

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