Mathematics, 26.10.2019 20:43, lilpetals
Richard goes on a 6-mile jog one morning. he jogs the first two miles at an average speed of 6 mph. he progressively slows down; his average speed during the next two miles is 4 mph. he walks the remaining two miles at an average speed of 3 mph. what is richard's average speed, in miles per hour?
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Richard goes on a 6-mile jog one morning. he jogs the first two miles at an average speed of 6 mph....
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