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fran swims at a speed of 2.4 mph in still water, the river flows at a speed of 0.6mp, how long will it take fran to swim 2.7mi upstream? and 2.7mi downstream?  NEED HELP!!
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fran swims at a speed of 2.4 mph in still water, the river flows at a speed of 0.6mp, how long will it take fran to swim 2.7mi upstream? and 2.7mi downstream?  NEED HELP!!

User Blueprintchris
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upstream her speed of 2.4 is decreased by 0.6 to 1.8mph. 2.7mph/1.8m = 1.5 hours
downstream her speed is incresed to 3 mph. 2.7/3 = 0.9 hours
User Jambriz
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