If necessary, round your answers to 1 decimal digit.

1 a. Noah's airplane trip took 2 hours. For one-third of that time, the airplane flew at a speed of 620 miles per hour, and for the rest of the time, it flew at a speed of 580 miles per hour. What distance did Noah travel?

 
 
 
 
 
 
 
 
 
2 a. An airplane flies 3040 km with a constant speed of 800 km/h and another 3210.7 km with a constant speed of 640 km/h. What is its average speed for the total trip?

 
 
 
 
 
 
 
 
 
3 a. Emily drives her car for 6.8 hours with a constant speed of 76 mph and then for another 1 hour 59 minutes with a constant speed of 36 mph. What is her average speed for the total trip?

 
 
 
 
 
 
 
 
 
Page 2

Answer Key

1 a. Noah traveled 1186.7 miles.
2 a. Its average speed is 709 km/h.
3 a. Her average speed is 67 mph.


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