1)Mr. Chu weighs W kg and Mr. Chau is X kg heavier than Mr. Chu.If Mr.Chan is Y kg lighter than Mr.Chau ,what is the reading if they both stand on a balance?
2)6x-9=4x
多多指教,thz so much~!
數學Math----please入黎幫下我ar~~~
2007-08-21 11:28 pm
回答 (3)
2007-08-21 11:34 pm
✔ 最佳答案
1)Mr. Chu weighs W kg and Mr. Chau is X kg heavier than Mr. Chu.If Mr.Chan is Y kg lighter than Mr.Chau ,what is the reading if they both stand on a balance?MR CHU = Wkg
Mr. Chau = Wkg + X kg
Mr.Chan = Wkg + Xkg - Ykg
2)6x-9=4x
6x - 9 = 4x
6x = 4x + 9
6x - 4x = 9
2x = 9
x= 9/2
x = 4.5
參考: F4理科生
2007-08-21 11:36 pm
第一題我想問係邊兩個企上個balance.
2)
6x-9=4x
6x-4x=9
2x=9
x=9/2
x=4.5
2)
6x-9=4x
6x-4x=9
2x=9
x=9/2
x=4.5
2007-08-21 11:31 pm
w+x+w+x-y=2(w+x)-y
x=4.5
x=4.5
收錄日期: 2021-04-13 15:08:13
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070821000051KK03925