數學概率問題1條

[匿名]

2008-07-25 6:18 pm

題目在此

http://www.flickr.com/photos/28781280@N06/2700361142/

回答 (1)

Wai Chiu

2008-07-25 9:24 pm

✔ 最佳答案

a) y=8-x

b) x/18 = 1/2
x = 9
y = 9

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