數學高手請幫幫手
回答 (3)
2007-11-13 11:02 pm
✔ 最佳答案
設A為原數。A - (A x 6%) = 47
A - 0.06A = 47
0.94A = 47
A = 47/0.94
A = 50
2007-11-13 10:48 pm
50 * 0.94 = 47
收錄日期: 2021-04-13 18:48:29
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071113000051KK01446