英语翻译14.In the,a middle school football conference,each team plays every other team exactly once.If a total of 21 conference games were played during the 2012 season,how many teams were members of the BIG N conference?SolutionThis problem is v

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英语翻译14.Inthe,amiddleschoolfootballconference,eachteamplayseveryotherteamexactlyonce.Ifatotalof21conf

英语翻译14.In the,a middle school football conference,each team plays every other team exactly once.If a total of 21 conference games were played during the 2012 season,how many teams were members of the BIG N conference?SolutionThis problem is v
英语翻译
14.In the,a middle school football conference,each team plays every other team exactly once.If a total of 21 conference games were played during the 2012 season,how many teams were members of the BIG N conference?
Solution
This problem is very similar to a handshake problem.We use the formula to usually find the number of games played (or handshakes).Now we have to use the formula in reverse.
So we have the equation Solving,we find that the number of teams in the BIG N conference is .
14.In theBIG N,a middle school football conference,each team plays every other team exactly once.If a total of 21 conference games were played during the 2012 season,how many teams were members of the BIG N conference?
Solution
This problem is very similar to a handshake problem.We use the formula n(n-1)/2 to usually find the number of games played (or handshakes).Now we have to use the formula in reverse.n(n-1)/2=21

英语翻译14.In the,a middle school football conference,each team plays every other team exactly once.If a total of 21 conference games were played during the 2012 season,how many teams were members of the BIG N conference?SolutionThis problem is v
这个应该是题目做法解析吧,但前一个和后一个都有不全的地方.I wonder why……
大意为：
14.一个中学搞足球比赛,每个队只跟别的每一个队比赛一次.如果在2012赛季总共比了21次,请问有多少个队参加了这次比赛?
（14.In the,a middle school football conference,each team plays every other team exactly once.If a total of 21 conference games were played during the 2012 season,how many teams were members of the BIG N conference?）
这个问题和握手问题非常相似.我们常用这个公式去找出比赛的次数（或是握手的）.现在我们反着用这个公式.
因此我们有了这个方程的解,我们解出队伍的数量为（为什么就没了啊!）
（This problem is very similar to a handshake problem.We use the formula to usually find the number of games played (or handshakes).Now we have to use the formula in reverse.
So we have the equation Solving,we find that the number of teams in the BIG N conference is .）
14.14.在BIG.N中,一个中学搞足球比赛,每个队只跟别的每一个队比赛一次.如果在2012赛季总共比了21次,请问有多少个队参加了这次比赛?
（14.In theBIG N,a middle school football conference,each team plays every other team exactly once.If a total of 21 conference games were played during the 2012 season,how many teams were members of the BIG N conference?）
这个问题跟握手问题非常相似.我们常用公式n(n-1)/2去找比赛的次数.现在我们反着用这个公式.n(n-1)/2=21

7 teams

英语翻译Green tea is a type of tea made solely with the leaves of Camellia sinensis that has undergone minimal oxidation during processing.Green tea originates from China and has become associated with many cultures in Asia from Japan to the Midd 英语对错题2.Our boss is so (harsh) that he gives every employee an extra day off on his or her birthday.A.错误B.正确3.Manuel is a hard-working person who always (strives) to do his best.A.错误B.正确4.Punishments for criminals in the Midd Carry That Weight的中文歌词怎反译?Boy,you're going to carry that weight Carry that weight a long time Boy,you're going to carry that weight Carry that weight a long time I never give you my pillow I only send you my invitation And in the midd 请教一句英文,是原版杂志上的一个早餐食品广告的一句话.这个食品是一种燕麦片之类的,早上倒在牛奶里面吃,说是可以控制热量和体重.And it stays with you so long,you are not tempted to nibble in the midd 英语翻译(用法还有词组in a word,in words ,in the word ,on a word ）英语翻译 in the first. 英语翻译【in the corner] 英语翻译in the honor 英语翻译in the whites. 英语翻译shot .in the 英语翻译At ( ) ( ) ( ) in the ( ) 英语翻译He saw a monkey _____ in the window yesterday. People cleaned the water up in a sewage plant.英语翻译英语翻译：I am a team leader in the game 英语翻译i must have left the camera in a shop 英语翻译- Memories and pain a person struggling in the weak 英语翻译翻译：leran the language in a more natural way 英语翻译The size can fit in a standard garage.