解2r+3.14*r=15.42

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/11 23:59:34

解2r+3.14*r=15.42

2r+3.14*r=15.42
5.14r = 15.42
r = 3

5.14*r=15.42;
r=15.42/5.14
r=3;

r=3

2r+3.14*r=15.42
5.14r = 15.42
r = 15.42/5.14
r = 3