[(1+50%)x+(1+40%)(360-x)]80%-360=56求x

分类: 作业答案 • 2021-12-19 17:55:18

问题描述：

[(1+50%)x+(1+40%)*(360-x)]*80%-360=56求x

答

[(1+50%)x+(1+40%)*(360-x)]*80%-360=56
[1.5x+1.4*(360-x)]*0.8=416
(1.5x+504-1.4x)*0.8=416
0.1x+504=520
0.1x=16
x=160

[(1+50%)x+(1+40%)*(360-x)]*80%-360=56求x