Algebra 2

Tim paddled his kayak 12km upstream against a 3km/h current and back again in 5h and 20 min.
A) what was the speed of his kayak?
B) how far could he have gone if there had been no current?

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asked by Dolly
  1. since time = distance/speed,

    12/(s-3) + 12/(s+3) = 16/3
    s = 6

    (16/3)*6 / 2 = 16 km
    assuming the same time for the round trip.

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    posted by Steve

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