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MATH / Melanie ran at 5 m/s for 400 meters, then ran at 4 m/s for the next 800 meters, and finally ran at 8 m/s for the final 400 meters. What was her average speed, in meters per second,… · Discussion

Discussing Melanie ran at 5 m/s for 400 meters, then ran at 4 m/s for the next 800 meters, and finally ran at 8 m/s for the final 400 meters. What was her average speed, in meters per second,… · MATH

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