簡單數學.......

m/(m+64) x 100=15.8
m/(m+64)=0.158
m=0.158(m+64)
m=0.158m+10.112
0.842m=10.112
m=12.01(小數點後2位)

2007-01-24 18:40:36 補充：
m/(m 64) x 100%=15.8%m/(m 64)=158/1000m=(158/1000)(m 64)m=158m/1000 10.112158m²/1000=10.112158m²=10112m²=10112/158m²=64m=8

2007-01-24 18:42:09 補充：
m/(m加64) x 100%=15.8%m/(m加64)=158/1000m=(158/1000)(m加64)m=158m/1000 10.112158m²/1000=10.112158m²=10112m²=10112/158m²=64m=8

e條計唔到!!

m/m =1 (分子分母一樣姐係1)


m/m+64*100%=15.8%

1+64≠0.158 (根本冇可能@@)

m/(m+64*100%)=15.8%
m/(m+64)=15.8/100
100m=15.8m+1011.2
84.2m=1011.2
m=12.0095