1. The speed of a boat ishlab 72 km and back to its starting poys 18 heurs Find the speed of stream​

Question

1. The speed of a boat ishlab
72 km and back to its starting poys 18 heurs
Find the speed of stream​

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Ella 4 weeks 2021-08-18T20:13:41+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-18T20:14:56+00:00

    Answer:

    Speed=144/8*60

    Speed=144/48

    Speed=3km/hrs

    Step-by-step explanation:

    I think so

    0
    2021-08-18T20:15:07+00:00

    Answer:pls mark as brainliest

    Step-by-step explanation:Let Speed of boat =X km/hr


    Speed of stream =Y km/hr


    Speed of downstream (X+Y)=72/8=9km/hr


    Speed of upstream (X-Y)=84/12=7km/hr


    X+Y=9


    X-Y=7


    Using elimination method


    X=8


    Y=1


    Answer speed of boat =8km/hr


    Speed of stream =1km/hr

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18:9+8+9*3-7:3-1*13 = ? ( )