If necessary, round your answers to 1 decimal digit.

1 a. Sarah's airplane trip took 1.4 hours. For one-third of that time, the airplane flew at a speed of 820 miles per hour, and for the rest of the time, it flew at a speed of 520 miles per hour. What distance did Sarah travel?

 
 
 
 
 
 
 
 
 
2 a. John travels in an airplane a distance of 2640 miles. For one-fourth of the distance, the airplane flies at a speed of 720 miles per hour, and for the rest of the distance, it flies at a speed of 800 miles per hour. How long does the trip take?

 
 
 
 
 
 
 
 
 
3 a. An airplane flies for 4.9 hours with a constant speed of 500 mph and then for another 5 hours 31 minutes with a constant speed of 680 mph. What is its average speed for the total trip?

 
 
 
 
 
 
 
 
 
Page 2

Answer Key

1 a. Sarah traveled 868 miles.
2 a. The trip takes 3 hours and 23 minutes or 3.4 hours.
3 a. Its average speed is 595.3 mph.

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