求下列題中各數值的百分增減
原值是200,百分數增減是-40%
原值是5,百分數增減是+80%
原值是44ml,百分數增減是+30%
原值是70cm,百分數增減是-25%
要有過程
有數學唔識做？？
2007-04-15 6:57 pm
回答 (2)
2007-04-15 7:05 pm
1) 200*(1-40%)=120
2) 5*(1+80%)=9
3) 44*(1+30%)=57.2
4) 70*(1-25%)=52.5
ok??
2) 5*(1+80%)=9
3) 44*(1+30%)=57.2
4) 70*(1-25%)=52.5
ok??
參考: 自己算出來~~
2007-04-15 7:05 pm
1. 200x(1-40%)
=200x60%
=120
2. 5 x(1+80%)
=5x180%
=9
3. 44x(1-30%)
=44x70%
=30.8
4. 70x(1-25%)
=70x75%
=52.5
=200x60%
=120
2. 5 x(1+80%)
=5x180%
=9
3. 44x(1-30%)
=44x70%
=30.8
4. 70x(1-25%)
=70x75%
=52.5
參考: me
收錄日期: 2021-04-12 22:22:49
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070415000051KK01269