1-百分之80等于几
问题描述:
1-百分之80等于几
x-百分之80x=40
答
x-80%x=40
20%x=40
x=40÷0.2
x=200
1-百分之80等于几
x-百分之80x=40
x-80%x=40
20%x=40
x=40÷0.2
x=200