百分率的應用
回答 (2)
2010-10-06 6:48 am
✔ 最佳答案
20x65%=20x65/100
=13
600 - 600x25%
=600 - 150
=450ml
2010-10-05 22:49:46 補充：
OR Q2
600x(1-25%)
=600x75%
=600x75/100
=450ml
2010-10-06 12:25:37 補充：
formula:
餘下數= 原本數量X(1-用去百分比)
2010-10-06 5:09 am
20的65%是:
20x65%
=20x65/100%
=13
20x65%
=20x65/100%
=13
收錄日期: 2021-04-16 11:53:45
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101005000051KK01271