(0.6x-1⼀2):0.25=0.3:7.5,解比例

过程

2025-06-20 09:39:21

推荐回答（3个）

回答1：

(7.5)(0.6x－1/2)=0.3×0.25
15(0.6x－1/2)=0.3×0.5
9x－7.5=0.15
9x=0.15＋7.5
9x=7.65
x=0.85

回答2：

(0.6x-1/2):0.25=0.3:7.5
7.5*(0.6x-1/2)=0.25*0.3
7.5*(0.6x-1/2)=0.075
0.6x-1/2=0.075/7.5
0.6x-1/2=0.01
0.6x=0.5+0.1
0.6x=0.51
x=0.51/0.6
x=0.85

回答3：

(0.6x-1/2):0.25=0.3:7.5
7.5*(0.6x-1/2)=0.25*0.3
7.5*(0.6x-1/2)=0.075
0.6x-1/2=0.075/7.5
0.6x-1/2=0.01
0.6x=0.5+0.1
0.6x=0.51
x=0.51/0.6
x=0.85

(7.5)(0.6x－1/2)=0.3×0.25
15(0.6x－1/2)=0.3×0.5
9x－7.5=0.15
9x=0.15＋7.5
9x=7.65
x=0.85