Asked by Anonymous
Alex swims in a 400-m freestyle competition at an average speed of 1 and 1 third m/s if he increases his average speed to 1.6m/s how much less time will he take?
Answers
Answered by
oobleck
since time = distance/speed,
400/(4/3) = 400/1.6 + x
400/(4/3) = 400/1.6 + x
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