Abigail roller skates 7 km with a constant speed of 12 km/h and another 16 km with a constant speed of 24 km/h. What is her average speed for the tota

By Clara

Abigail roller skates 7 km with a constant speed of 12 km/h and another 16 km with a constant speed of 24 km/h. What is her average speed for the total trip?




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