英语翻译一 If a film takes 90 minutes to show,what fraction of the film is completed 15 minutes after it begins?二 On a square gameboard that is divided into N rows of N squares each,K of these squares lie along the boundary of the gameboard.On
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英语翻译一 If a film takes 90 minutes to show,what fraction of the film is completed 15 minutes after it begins?二 On a square gameboard that is divided into N rows of N squares each,K of these squares lie along the boundary of the gameboard.On
英语翻译
一 If a film takes 90 minutes to show,what fraction of the film is completed 15 minutes after it begins?
二 On a square gameboard that is divided into N rows of N squares each,K of these squares lie along the boundary of the gameboard.
On a square gameboard that is divided into N rows of N squares each,K of these squares lie along the boundary of the gameboard,which of the following is a possible value for K
A.10 B.25 C.34 D.42 E.52
英语翻译一 If a film takes 90 minutes to show,what fraction of the film is completed 15 minutes after it begins?二 On a square gameboard that is divided into N rows of N squares each,K of these squares lie along the boundary of the gameboard.On
一.如果一部电影需要90分钟播完,那么这部电影在它开始15分钟后播放了电影的几分之几?
二.在一个被分成N排N个小块正方形的正方形游戏板上面,其中有K个这些正方形小块排列在游戏板的四周边缘.
选E.先在纸上画一个正方形,然后将其分成N行N列,这样就得到了很多小正方形,稍微观察一下你就会发现四周的小正方形数目是有规律的,即K=4N-4.将上面答案带进去算,发现只有52才符合.N=14,K=52.
如果一部电影需要90分钟来演，开始15分钟后电影已经放了几分之几？
在一方形的，被划分成N行，每行有N个方块（即划分成了N行N列）的赌台上，有K个方块位于赌台边界。