若一件貨品以｛八折再八折｝的優惠出售，這優惠相等於多少折？？？
我想要橫式
教我做數學
2007-01-02 5:17 am
回答 (9)
2007-01-02 5:24 am
✔ 最佳答案
假設這件貨品價值$100元正當這件貨品打八折優惠折扣之後,再有八折優惠
$100 x 0.8 x 0.8 = $64
將$64除以原本價值$100再乘100%
64/100 x 100%=64%
答案：這優惠相等於64折
2007-01-02 6:24 am
如一件貨品值100元的話，優惠就是
$100X80%X80%=$64%
即是64元，也是六四折
明白沒有？？？
$100X80%X80%=$64%
即是64元，也是六四折
明白沒有？？？
參考: Me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
2007-01-02 5:34 am
80%x80%=64折
這優惠相等於64折
這優惠相等於64折
2007-01-02 5:19 am
八折再八折=80%X80%=64%
即64折
即64折
2007-01-02 5:19 am
80%x80%=64折
收錄日期: 2021-04-12 23:37:06
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070101000051KK05004