(k x 20%) + (k x 80% x 37.5%) = 9
步驟 thx
方程式一條
2008-03-26 3:21 am
回答 (3)
2008-03-26 3:23 am
✔ 最佳答案
(k x 20%) + (k x 80% x 37.5%) = 90.2k+0.3k=9
0.5k=9
k=18
2008-03-26 10:01 pm
(kx20%)+(kx80%x37.5%)=9
20/100k+3/10k=9
(20/100+30/100)k=9
50/100k=9
k=9x100/50
k=18
20/100k+3/10k=9
(20/100+30/100)k=9
50/100k=9
k=9x100/50
k=18
2008-03-26 4:01 am
(kx20%) (kx80%x37.5%)=9
(1/5)k [k(4/5)(37.5/100)]=9
(1/5)k (3/10)k=9
(1/2)k=9
k=9(2/1)
k=18
備注: / = 分線
(1/5)k [k(4/5)(37.5/100)]=9
(1/5)k (3/10)k=9
(1/2)k=9
k=9(2/1)
k=18
備注: / = 分線
參考: me
收錄日期: 2021-04-13 15:20:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080325000051KK02946