Mathematics, 29.07.2019 00:40 burnsmykala23

On a recent 250-mile trip, felicia averages 50 mph over the first 125 miles. what should be her average speed for the second half of her trip, if she wants to average 60 mph over the whole trip?

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On a recent 250-mile trip, felicia averages 50 mph over the first 125 miles. what should be her aver...