A cruise started its trip 8:00. Its average speed was 100 km/h. When it travelled 2/5 of its journey by 12:00, the boat changed

Question

A cruise started its trip 8:00. Its average speed was 100 km/h.
When it travelled 2/5 of its journey by 12:00, the boat changed
its speed. If the boat was required to arrive at the destination at
17:00, what average speed must the boat travel at for the
remaining journey?

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Trúc Chi 4 years 2021-08-02T05:02:09+00:00 2 Answers 120 views 0

Answers ( )

  1. quangkhai
    0
    2021-08-02T05:03:15+00:00
    Reply

    Answer:

    120 k/m

    Explanation:

  2. thuthao
    0
    2021-08-02T05:03:40+00:00
    Reply

    Answer: 120

    Explanation:

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )