If necessary, round your answers to 1 decimal digit.

1 a. Noah's airplane trip took 4 hours 24 minutes. For one-half of that time, the airplane flew at a speed of 1008 km/h, and for the rest of the time, it flew at a speed of 648 km/h. What distance did Noah travel?

 
 
 
 
 
 
 
 
 
2 a. An airplane flies for 0.2 hours with a constant speed of 720 km/h and then for another 50 minutes with a constant speed of 1000 km/h. What is its average speed for the total trip?

 
 
 
 
 
 
 
 
 
3 a. A police car drives 168 km with a constant speed of 84 km/h and another 138 km with a constant speed of 72 km/h. What is its average speed for the total trip?

 
 
 
 
 
 
 
 
 
Page 2

Answer Key

1 a. Noah traveled 3643.2 km.
2 a. Its average speed is 945.8 km/h.
3 a. Its average speed is 78.1 km/h.

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