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Nicki rides her bike at a constant speed for 6 km. That part of her ride takes her 1 h. She then rides her bike at a constant speed for another 9
km. That part of her trip takes her 2 h. What is her average speed?

Nicki rides her bike at a constant speed for 6 km That part of her ride takes her 1 h She then rides her bike at a constant speed for another 9 km That part of class=