解方程:140*0.43+(X-140)*0.57=0.5*X
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/31 02:12:00
解方程:140*0.43+(X-140)*0.57=0.5*X
140*0.43+(X-140)*0.57=0.5*X
140*0.43+(X-140)*0.57=0.5*X
![解方程:140*0.43+(X-140)*0.57=0.5*X](/uploads/image/z/19497630-30-0.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A140%2A0.43%2B%EF%BC%88X-140%29%2A0.57%3D0.5%2AX)
140*0.43+(X-140)*0.57=0.5*X
60.2+0.57x-79.8=0.5x
0.07x=19.6
x=280
60.2+0.57x-79.8=0.5x
0.07x=19.6
x=280