an athlete runs around a 400m race track four times it takes him 400s to complete his run

Question

an athlete runs around a 400m race track four times it takes him 400s to complete his run

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Dulcie 3 years 2021-07-23T09:55:53+00:00 1 Answers 11 views 0

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  1. King
    0
    2021-07-23T09:57:27+00:00
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    Answer: its taking him 100s to run around the track once

    Explanation:

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