y = 幾
請列式
please
2y X 70% =420
2007-01-02 1:26 am
回答 (9)
2007-01-02 1:29 am
✔ 最佳答案
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2007-01-02 1:56 am
2y X 70% =420
2yX70/100=420
2yX70=42000
2y=42000/70
2y=600
y=300
2yX70/100=420
2yX70=42000
2y=42000/70
2y=600
y=300
參考: me
2007-01-02 1:35 am
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2007-01-02 1:33 am
2y X 70% =420
2y × 0.7 =420
ˉˉ1.4y =420
ˉˉˉˉy=300
2y × 0.7 =420
ˉˉ1.4y =420
ˉˉˉˉy=300
2007-01-02 1:33 am
2y X 70% =420
2yx7/10=420
2yx7/10x10/7=420x10/7
2y/2=600/2
y=300
/(''份''線)
2yx7/10=420
2yx7/10x10/7=420x10/7
2y/2=600/2
y=300
/(''份''線)
參考: 自己算
2007-01-02 1:32 am
2y x 70% = 420
2y = 420/0.7
2y = 600
y = 300
2y = 420/0.7
2y = 600
y = 300
2007-01-02 1:32 am
y=300
2y x 70%=420
2y = 420/ 0.7 (0.7=70%)
2y = 600
2y/2=600/2
y=300
* 420/0.7 = 420除以0.7
2y x 70%=420
2y = 420/ 0.7 (0.7=70%)
2y = 600
2y/2=600/2
y=300
* 420/0.7 = 420除以0.7
參考: my own calculation
2007-01-02 1:29 am
2y X 70% =420
2yX70/100=420
2yX70=42000
2y=42000/70
2y=600
y=300
2yX70/100=420
2yX70=42000
2y=42000/70
2y=600
y=300
收錄日期: 2021-04-12 23:10:15
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070101000051KK03454