Concept explainers
Critical Thinking Exercises
Make Sense? Read this expert from an advertisement for bikes with aerodynamic coverings.
Our high-performance bicycles have the aerodynamic design of custom racing bikes, but are practical for everyday riding. The aerodynamic covering will increase your average speed by 10 miles per hour. Cyclists using our bicycles, versus bikes without aerodynamic covering, reduce time on a 75-mile test run by 2 hours.
Now you are interested in finding the average rate of the bikes with the aerodynamic coverings on the 75-mile test run. With this goal in mind, determine whether each statement in Exercises 67–70 makes sense or does not make sense, and explain your reasoning.
My professor verified that 15 is the correct value for
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Intermediate Algebra for College Students (7th Edition)
- If you travel 100 miles in two hours, then your average speed for the trip is Average speed=_________=________arrow_forwardAt the start of a trip, the odometer on a car read 21,395. At the end of the trip, 13.5 hours later, the odometer read 22,125, Assume the scale on the odometer is in miles. What is the average speed the car traveled during this trip?arrow_forwardFind the mean hourly cost when the cell phone described above is used for 240 minutes.arrow_forward
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