求下列各題的售價和折扣`
(a)
標價$160;折扣率10%。
(b)標價$560;折扣率25%。
2題數學題`15點
2009-08-26 4:47 am
回答 (4)
2009-08-26 5:40 am
✔ 最佳答案
(a)售價 = $160X(1-10%)=160X 90%
=$144
折扣=$160-$144
=$16
(b)售價 = $560X(1-25%)
= $560X75%
= $420
折扣 = $560-$420
=$140
參考: me
2009-08-26 8:14 pm
(a)
標價$160;折扣率10%。
(160) (1-10%)
=$144
(b)標價$560;折扣率25%。
(560)(1-25%)
=$420
2009-08-26 12:17:56 補充：
sorry,忘了加折扣
(a)$160-$144
=$16
(b)$560-$420
=$140
標價$160;折扣率10%。
(160) (1-10%)
=$144
(b)標價$560;折扣率25%。
(560)(1-25%)
=$420
2009-08-26 12:17:56 補充：
sorry,忘了加折扣
(a)$160-$144
=$16
(b)$560-$420
=$140
參考: 自己
2009-08-26 6:39 am
(a)售價 = $160X(1-10%)
=160X 90%
=$144
折扣=$160-$144
=$16
(b)售價 = $560X(1-25%)
= $560X75%
= $420
折扣 = $560-$420
=$140
=160X 90%
=$144
折扣=$160-$144
=$16
(b)售價 = $560X(1-25%)
= $560X75%
= $420
折扣 = $560-$420
=$140
參考: 一本習作！！
2009-08-26 5:02 am
a) $160*(100%-10%)
= $160*(0.9)
=$144
b) $560*(100%-25%)
=$560*(0.75)
=$420
= $160*(0.9)
=$144
b) $560*(100%-25%)
=$560*(0.75)
=$420
參考: myself
收錄日期: 2021-04-13 16:48:28
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090825000051KK02099