數學題目...

2006-12-20 4:41 am
數學題目...請詳細回答!!THX!!!

S  
-=-0.2(1-3S)


THX for you all the answers!!

回答 (5)

2006-12-20 4:46 am
✔ 最佳答案
 s
 - = -0.2+0.6s
 3

  s=3(-0.2+0.6s)

  s=-0.6+1.8s

  0.6=1.8s-s

  0.6=0.8s

    s=0.75
  
2006-12-20 5:07 am
S  
-=-0.2(1-3S)
3


S  
-=-0.2+0.6S
3

s=(-0.2+0.6s)3

s=-0.6+1.8s

s-1.8s=-0.6

-0.8s=-0.6

0.8s=0.6

s=0.6/0.8

s=3/4
參考: me
2006-12-20 4:54 am
S/3= -0.2(1-3S)
S= -0.6(1-3S)
S= -0.6+1.8S
-0.8S= -0.6
S= 0.75
參考: 自己計
2006-12-20 4:46 am
s/3=-0.2+0.6s
s=-0.6+1.8s
0.6=0.8s
s=3/4
2006-12-20 4:46 am
S  
-=-0.2(1-3S)


s=-0.6+1.8s
0.8x=0.6
x=3/4
參考: 自己


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