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Amotor boat goes 240 km. downstream in the same time it can go 180 km. upstream. the speed of the current is 4 kph. find the speed of boat in still water.

Answers

  • Réponse publiée par: hellcrack777

    3kph

    Step-by-step explanation:

  • Réponse publiée par: elaineeee

    25mph po ang sagot

    Step-by-step explanation:

    \frac{240}{x+5} = \frac{160}{x-20}

    240 (x - 5)= 160 (x+5)

    240x - 1200 = 160x +80

    80x =2000

    x =25mph

  • Réponse publiée par: 09330399672

    answer:

    the speed of boat in still the water is 80 miles downstream

    step-by-step explanation:

  • Réponse publiée par: elaineeee

    answer:

    di ko din alam yan ano ba sagot

  • Réponse publiée par: 09389706948

    Kd is the only one I have seen so long ago as a I have a lot to do with it was my best top choice in the world girls to the

  • Réponse publiée par: elaineeee

    Step-by-step explanation:

    x = speed of the boat

    from the formula

    d=st

    d is distance

    s is speed

    t is time

    t = d/s

    upstream: (the boat is moving against the current)

    t1 = 160/(x - 5)

    downstream: (the boat is moving along with the current)

    t2 = 240/(x + 5)

    since t1 is equal to t2

    160/(x - 5) = 240/(x + 5) (cross multiply)

    160(x + 5) = 240(x - 5)

    160x + 800 = 240x - 1200

    x = 25 km/hr

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Amotor boat goes 240 km. downstream in the same time it can go 180 km. upstream. the speed of the cu...