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  • A certain basketball team that has played 2/3 of its game has a record of 17 wins and 3 lossed.What is the greatest numb

    A certain basketball team that has played 2/3 of its game has a record of 17 wins and 3 lossed.What is the greatest number of the remaining games that the team can lose and still win at least 3/4 of all of its games?我自己算出答案是5,但是答案是4,我也不知道為什么,如果方便的話把答題過(guò)程也一起貼上吧!感激不盡!
    英語(yǔ)人氣:197 ℃時(shí)間:2020-03-31 15:29:15
    優(yōu)質(zhì)解答
    很容易算出賽季共30場(chǎng)((17+3)/(2/3)).
    問(wèn)的是最多還能輸幾場(chǎng)(設(shè)為x),于是得:
    (30-3-x)/30 >= 3/4
    解出x
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