SOLUTION: if Jim travels for a half hour at an rate of 20 miles per hour, and for another half hour at an 30 miles per hour, what is his average speed
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Question 194337: if Jim travels for a half hour at an rate of 20 miles per hour, and for another half hour at an 30 miles per hour, what is his average speed Answer by Edwin McCravy(20060) (Show Source):
