解方程:140*0.43+(X-140)*0.57=0.5*X140*0.43+(X-140)*0.57=0.5*X

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/22 09:55:28

解方程:140*0.43+(X-140)*0.57=0.5*X140*0.43+(X-140)*0.57=0.5*X
解方程: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*X140*0.43+(X-140)*0.57=0.5*X
140*0.43+(X-140)*0.57=0.5*X
60.2+0.57x-79.8=0.5x
0.07x=19.6
x=280