1.一套西裝標價$1800,以六折出售
a)求折扣 (b)求西裝的售價
2.馬先生以八折購買一件他省了標價$125的T恤,問多少錢
3.五先生以$96買入一件以七五折出售的T恤,求T恤標價
要有過程
有數學唔識做？？
2007-04-25 2:48 am
回答 (6)
2007-04-25 2:55 am
✔ 最佳答案
1a.六折1b.1800x60%
=1080
2.125/80%
=625
3.96/75%
=128
2007-04-26 21:12:59 補充：
2.125/(1-80%)=625
2007-04-25 3:10 am
1a.1800-(1800*60%)=1800-1080=720
1b.1800*60%=1080
2.X*(1-25%)=125
X=125/75%
X=125*(100/75)
X=93.75
3.X*75%=96
X=96/75%
X=96*(75/100)
X=72
*=乖,/=除
1b.1800*60%=1080
2.X*(1-25%)=125
X=125/75%
X=125*(100/75)
X=93.75
3.X*75%=96
X=96/75%
X=96*(75/100)
X=72
*=乖,/=除
參考: ME
2007-04-25 3:00 am
1a.折扣
=1-60%
=40%
1b.西裝的售價
=$1800x60%
=$1080
2 設標價為y
y(1-80%) =125
y=625
所以標價為$625
3 設T恤標價為y
y(75%)=96
y=128
所以T恤標價為$128
=1-60%
=40%
1b.西裝的售價
=$1800x60%
=$1080
2 設標價為y
y(1-80%) =125
y=625
所以標價為$625
3 設T恤標價為y
y(75%)=96
y=128
所以T恤標價為$128
參考: me
2007-04-25 2:58 am
1a)$1800x40%=$720
b)$1800-720=$1080
2)nx(1-80%)=125
nx20%=125
n=625
T恤值$625
3)nx75%=96
n=128
恤值$128
b)$1800-720=$1080
2)nx(1-80%)=125
nx20%=125
n=625
T恤值$625
3)nx75%=96
n=128
恤值$128
參考: me
2007-04-25 2:57 am
1792.5
2007-04-24 18:58:17 補充：
1a. 40%off1b. $1800*60%= $10802. $125/(1-80%)= $5003. $96/75%= $128
2007-04-24 18:59:02 補充：
1a.六折1b.1800x60%=10802.125/80%=6253.96/75%=128
2007-04-24 18:59:57 補充：
1a)$1800x40%=$720b)$1800-720=$10802)nx(1-80%)=125nx20%=125n=625T恤值$6253)nx75%=96n=128恤值$128
2007-04-24 18:58:17 補充：
1a. 40%off1b. $1800*60%= $10802. $125/(1-80%)= $5003. $96/75%= $128
2007-04-24 18:59:02 補充：
1a.六折1b.1800x60%=10802.125/80%=6253.96/75%=128
2007-04-24 18:59:57 補充：
1a)$1800x40%=$720b)$1800-720=$10802)nx(1-80%)=125nx20%=125n=625T恤值$6253)nx75%=96n=128恤值$128
參考: me
2007-04-25 2:56 am
1a. 40%off
1b. $1800*60%
= $1080
2. $125/(1-80%)
= $500
3. $96/75%
= $128
1b. $1800*60%
= $1080
2. $125/(1-80%)
= $500
3. $96/75%
= $128
收錄日期: 2021-04-13 16:59:39
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070424000051KK03320