Xx2+2.5x=200
咁x=???
Xx2+2.5x=200
2006-12-12 4:47 am
回答 (7)
2006-12-13 12:59 am
✔ 最佳答案
Xx2+2.5x=200x=40
2006-12-12 4:55 am
如果係2X+2.5X=200既話
即係2乘X加2.5乘X=200
咁
2X+2.5X=200
4.5X=200
X= 200/4.5
X=400/9=44.444...
即係2乘X加2.5乘X=200
咁
2X+2.5X=200
4.5X=200
X= 200/4.5
X=400/9=44.444...
2006-12-12 4:54 am
2X+2.5X=200
4.5X=200
X=200/4.5(除以4.5)
所以X=44又4/9
4.5X=200
X=200/4.5(除以4.5)
所以X=44又4/9
2006-12-12 4:52 am
2x+2.5x=200
4.5x=200
x=200÷4.5
x=44 2／5
2006-12-11 20:57:57 補充：
x約＝44 2/5
2006-12-11 20:58:30 補充：
x=44.444... x=44.444... x=44.444... x=44.444... x=44.444... x=44.444...
2006-12-11 21:00:39 補充：
這些練習下就會越做越好越做越好越做越好越做越好越做越好越做越好越做越好越做越好越做越好越做越好越做越好
4.5x=200
x=200÷4.5
x=44 2／5
2006-12-11 20:57:57 補充：
x約＝44 2/5
2006-12-11 20:58:30 補充：
x=44.444... x=44.444... x=44.444... x=44.444... x=44.444... x=44.444...
2006-12-11 21:00:39 補充：
這些練習下就會越做越好越做越好越做越好越做越好越做越好越做越好越做越好越做越好越做越好越做越好越做越好
參考: 自己
2006-12-12 4:51 am
x(2+2.5)=右200
x=400/9
x=400/9
收錄日期: 2021-04-12 22:00:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061211000051KK03989