If necessary, round your answers to 1 decimal digit.

1 a. An airplane flies for 0.4 hours with a constant speed of 500 mph and then for another 2 hours 28 minutes with a constant speed of 560 mph. What distance did it go?

 
 
 
 
 
 
 
 
 
2 a. Julia rides her bike for 1 3/4 hours with a constant speed of 12 km/h and then for another 2 hours 30 minutes with a constant speed of 16 km/h. What distance did she go?

 
 
 
 
 
 
 
 
 
3 a. Julia roller skates 40 km with a constant speed of 20 km/h and another 24.1 km with a constant speed of 17 km/h. How much time in total does she take to travel these distances?

 
 
 
 
 
 
 
 
 
Page 2

Answer Key

1 a. It traveled a distance of 1581.3 miles.
2 a. She traveled a distance of 61 km.
3 a. She takes 3 hours and 25 minutes to travel the two distances.

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