18%:20分之3=6.
问题描述:
18%:20分之3=6.
答
18%:20分之3=6.5分之x
6:5=x/6.5
x/6.5=1.2
x=1.2×6.5
x=7.8
答
3x/20=18%*6.5
0.15x=0.18*6.5
x=0.18*6.5/15
x=0.078=7.8%
答
6.5分之X=x/6.5
x/6.5=1.2
x=1.2×6.5
x=7.8