If necessary, round your answers to 1 decimal digit.
An airplane flies for 2.7 hours with a constant speed of 720 km/h and then for another 4 hours 49 minutes with a constant speed of 680 km/h. What is its average speed for the total trip?
Nancy rides her bike 45 miles with a constant speed of 18 mph and another 23 miles with a constant speed of 12 mph. What is her average speed for the total trip?
Mike's airplane trip took 1 hour 24 minutes. For one-fourth of that time, the airplane flew at a speed of 744 km/h, and for the rest of the time, it flew at a speed of 1080 km/h. What distance did Mike travel?
Its average speed is 694.4 km/h.
Her average speed is 15.4 mph.
Mike traveled 1394.4 km.
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