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Lesley0479 Lesley0479
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6 years ago
A river has a steady speed of 0.30 m/s. A student swims downstream a distance of 1.2 km and returns to the starting point. If the student swims with respect to the water at a constant speed and the downstream portion of the swim requires 20 minutes, how much time is required for the entire swim?
 a. 50 minutes
  b. 80 minutes
  c. 90 minutes
  d. 70 minutes
  e. 60 minutes
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lizziemjordanlizziemjordan
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6 years ago
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Lesley0479 Author
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6 years ago
Smart ... Thanks!
wrote...

Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
wrote...

2 hours ago
This calls for a celebration Person Raising Both Hands in Celebration
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