If necessary, round your answers to 1 decimal digit.

1 a.

Mike rides his bike 28.5 miles with a constant speed of 18 mph and another 35 miles with a constant speed of 12 mph. What is his average speed for the total trip?

2 a.

A police car drives 269.1 km with a constant speed of 69 km/h and another 292.5 km with a constant speed of 109 km/h. What is its average speed for the total trip?

3 a.

Abigail's airplane trip took 2.4 hours. For one-third of that time, the airplane flew at a speed of 600 km/h, and for the rest of the time, it flew at a speed of 1000 km/h. What distance did Abigail travel?

Page 2

Answer Key

1 a.

His average speed is 14.1 mph.

2 a.

Its average speed is 85.3 km/h.

3 a.

Abigail traveled 2080 km.

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