x:5/4=80%*1/2
问题描述:
x:5/4=80%*1/2
答
x:5/4=80%*1/2
X=0.8*0.5*5/4
X=2/5*5/4
X=1/2
x:5/4=80%*1/2
x:5/4=80%*1/2
X=0.8*0.5*5/4
X=2/5*5/4
X=1/2