Chemistry, 25.09.2021 01:40 michaelishawilliams

4. A runner completes two laps around a 400 m track. She runs the first lap in 1 min and 32 s, and the second lap in 1 min and 49 s. What is her average speed?

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4. A runner completes two laps around a 400 m track. She runs the first lap in 1 min and 32 s, and t...

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