Time-Rate rode his bike 17 mi from his home to Columbus,
Chapter 2, Problem 2.1.1.577(choose chapter or problem)
Time-Rate Problem Josh rode his bike 17 mi from his home to Columbus, and then traveled 53 mi by car from Columbus to Dayton. Assume that the average rate of the car was 43 mph faster than the average rate of the bike.
(a) Express the total time required to complete the 70-mi trip (bike and car) as a function of the rate x of the bike.
(b) Find graphically the rate of the bike if the total time of the trip was 1 h 40 min. Confirm algebraically.
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