model answer: http://us.f6.yahoofs.com/hkblog/rDkOb8SWERnmmaR4UeTpiIbmgvVT_1/blog/20100406083132942.jpg?TTAyRvLBhaN5MRhK
我想問下,點解唔係84乘(11.28減11.28乘17.5%)????
更新1:
想問下,點解唔係84乘(11.28減11.28乘17.5%)????
數學百分數數學百分數數學百分數
2010-04-06 4:53 pm
問題: http://us.f6.yahoofs.com/hkblog/rDkOb8SWERnmmaR4UeTpiIbmgvVT_1/blog/20100406083107867.jpg?ib_____DuTUoGGRJ
model answer: http://us.f6.yahoofs.com/hkblog/rDkOb8SWERnmmaR4UeTpiIbmgvVT_1/blog/20100406083132942.jpg?TTAyRvLBhaN5MRhK
我想問下,點解唔係84乘(11.28減11.28乘17.5%)????
model answer: http://us.f6.yahoofs.com/hkblog/rDkOb8SWERnmmaR4UeTpiIbmgvVT_1/blog/20100406083132942.jpg?TTAyRvLBhaN5MRhK
我想問下,點解唔係84乘(11.28減11.28乘17.5%)????
回答 (1)
2010-04-06 5:23 pm
✔ 最佳答案
實際用量 = x(1 + 17.5%)x = 11.28
x = 11.28/1.175
實際要交 = (11.28/1.175)(84) = 806.4
係理解問題唔清楚
實際用量 = x
煤氣錶表示用量比實際多 17.5%
即多左 17.5% x
所以加埋 (1 + 17.5%)x = 11.28
收錄日期: 2021-04-19 21:50:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100406000051KK00269