If necessary, round your answers to 1 decimal digit.

1 a.

Nancy travels in an airplane a distance of 2520 miles. For one-third of the distance, the airplane flies at a speed of 600 miles per hour, and for the rest of the distance, it flies at a speed of 700 miles per hour. How long does the trip take?

2 a.

Grace rides her bike 23.1 miles with a constant speed of 7 mph and another 57.8 miles with a constant speed of 11 mph. What is her average speed for the total trip?

3 a.

David travels in an airplane a distance of 1620 miles. For one-third of the distance, the airplane flies at a speed of 660 miles per hour, and for the rest of the distance, it flies at a speed of 500 miles per hour. How long does the trip take?

Page 2

Answer Key

1 a.

The trip takes 3 hours and 48 minutes or 3.8 hours.

2 a.

Her average speed is 9.5 mph.

3 a.

The trip takes 2 hours and 58 minutes or 3 hours.

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