y + 3y/4 = 210
THX
呢條數點計啊？
2010-07-19 4:52 am
回答 (5)
2010-07-19 5:47 am
參考: myself
2010-07-19 5:35 am
呢條數點計啊？y + 3y/4 = 210
y+0.75y=210
1.75y....=210
y..........=120
2010-07-18 21:37:14 補充：
4(y + (3y/4 ))=210*4
4y+3y..........=840
7y................=840
y..................=120
_________________
Both of the answers are correct
y+0.75y=210
1.75y....=210
y..........=120
2010-07-18 21:37:14 補充：
4(y + (3y/4 ))=210*4
4y+3y..........=840
7y................=840
y..................=120
_________________
Both of the answers are correct
2010-07-19 5:20 am
y + 3y/4 = 210
7y/4 = 210
y/4=30
y=120
7y/4 = 210
y/4=30
y=120
2010-07-19 5:04 am
y + 3y/4 = 210
4y+3y = 210*4
y(4+3)=840
y=840/(4+3)
y=120
2010-07-18 21:07:01 補充：
樓上的
你錯左啦
第二步3y/4*4既時候
前面個y都要*4
4y+3y = 210*4
y(4+3)=840
y=840/(4+3)
y=120
2010-07-18 21:07:01 補充：
樓上的
你錯左啦
第二步3y/4*4既時候
前面個y都要*4
參考: , me
2010-07-19 5:02 am
y + 3y/4 = 210
Y+3Y/4 x4=210x4
y+3y=840
y+3y/3=210/3
y=70
我唔知對不對!!
Y+3Y/4 x4=210x4
y+3y=840
y+3y/3=210/3
y=70
我唔知對不對!!
參考: 我
收錄日期: 2021-04-13 17:23:19
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100718000051KK01431