Mathematics, 30.07.2021 03:30, MalikaJones
Janelle averages 40 kilometers per hour biking on level ground. She averages 60% of her level-ground speed riding uphill, and she averages 120% of her level-ground speed riding downhill. The course is level for 5 kilometers, uphill for 6 kilometers, and then downhill for6 kilometers. How many kilometers per hour is her average speed for the entire course
Answers: 3
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