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發問:
At a ball shooting game, each player can shoot two balls. It is known that 36 players have hit the target one or two times, and the total number of attempt made is 62. How many player has hit the target only one time and how many player has hit two times? 聯合方程，淨係要列式，同點解咁列
最佳解答:
let x be the no. of player has hit the target only one time; y be the no. of player has hit the targe two times x + y = 36 ........(1) x + 2y = 62 .......(2) (2) - (1) : y = 26 substitute y=26 into (1) x = 36 - y x = 36 - 26 x = 10 2011-11-26 15:22:05 補充： formula (1) is about no. of players formula (2) is about no. of hit
其他解答:
幫你係雅虎search過，唔知道以下網址幫不幫到您，應該有您想要的東西http://hk.search.yahoo.com/search;_ylt=Axt7wJ_GPHxOIkAAIEuzygt.?p=%E5%85%A8%E7%90%83%E6%9C%8D%E9%A3%BE%E6%89%B9%E7%99%BC%E7%B6%B2-%E6%B8%AF%E8%B2%A8%E5%BB%A0%E5%AE%B6%E6%89%B9%E7%99%BC%E8%B2%A8%E6%BA%90%EF%BC%8C%E6%99%82%E8%A3%9D%E6%89%B9%E7%99%BC%E8%B2%A8%E6%BA%90&fr2=sb-top&fr=FP-tab-web-t&rd=r1 記住俾分我牙!|||||you have 2 information i. 36 players, some hit 1 time, the rest hit 2 times, but no one missed all shots ii. total 62 hits let x be the number of player hit once let y be the number of player hit twice in terms of player: x + y = 36 ........(1) in terms of hits: x + 2y = 62 ..........(2)
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F.4 Solving Simultaneous發問:
At a ball shooting game, each player can shoot two balls. It is known that 36 players have hit the target one or two times, and the total number of attempt made is 62. How many player has hit the target only one time and how many player has hit two times? 聯合方程，淨係要列式，同點解咁列
最佳解答:
let x be the no. of player has hit the target only one time; y be the no. of player has hit the targe two times x + y = 36 ........(1) x + 2y = 62 .......(2) (2) - (1) : y = 26 substitute y=26 into (1) x = 36 - y x = 36 - 26 x = 10 2011-11-26 15:22:05 補充： formula (1) is about no. of players formula (2) is about no. of hit
其他解答:
幫你係雅虎search過，唔知道以下網址幫不幫到您，應該有您想要的東西http://hk.search.yahoo.com/search;_ylt=Axt7wJ_GPHxOIkAAIEuzygt.?p=%E5%85%A8%E7%90%83%E6%9C%8D%E9%A3%BE%E6%89%B9%E7%99%BC%E7%B6%B2-%E6%B8%AF%E8%B2%A8%E5%BB%A0%E5%AE%B6%E6%89%B9%E7%99%BC%E8%B2%A8%E6%BA%90%EF%BC%8C%E6%99%82%E8%A3%9D%E6%89%B9%E7%99%BC%E8%B2%A8%E6%BA%90&fr2=sb-top&fr=FP-tab-web-t&rd=r1 記住俾分我牙!|||||you have 2 information i. 36 players, some hit 1 time, the rest hit 2 times, but no one missed all shots ii. total 62 hits let x be the number of player hit once let y be the number of player hit twice in terms of player: x + y = 36 ........(1) in terms of hits: x + 2y = 62 ..........(2)
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