聾非瘋無

做緊作業(最後2本3.3)
有幾題唔識
1.x=一3 y=2 find the values of the following:
  x     
----       4xy
3y

2.the boiling point and melting of mercury are about 357。c and一391。c.Find the difference in temperature between its boilling point and melting point.(列埋條式a_a)

3.22-3x=-8x-8

4.-25        5
   -----  =  ----
     4       -2x

仲有好多...陸續有黎a_a

聾非瘋無

引用:

原帖由 kaka123 於 2007-8-17 02:34 發表
幫你做唔難,但幫完你要識先得架.....

做完有個參考就咩都得哂
廢話少講...快教3.3

聾非瘋無

引用:

原帖由 kaka123 於 2007-8-17 02:38 發表
第一條塞哂d數入去
二係減數
3.-5x=30
4.50x=20

(全部未完成)

哥哥仔...3,4條比條方程黎:lol :lol

加多幾條:lol
     1             1
1.(-6 ---  )除(2-----)
     4              2

2.a shopowner sells three items a,b and c with the following results:
item a:a loss of $540
item b:a gain of$720
itemc:a loss of $310
(a)find the gain or loss

3.in a multiple-choice test are 24 questions.for each question,4marks are given for a correct answer,3marks are deducted for an incorrect answer and2marks are deducted for no answer.john attempts18 question,and only answers 9 questions correctly.find his final score.

聾非瘋無

引用:

原帖由 悟空〤 於 2007-8-17 12:31 發表
你升中一都咁難嫁咩= =定係你中一升中二??

呢d係中1野
不過太耐唔記得-.-
同某位人兄一樣唔太想諗
我而家升中2