问题
解答题
|
答案
(1)x÷
=0.6,1 2
2x=0.6,
2x÷2=0.6÷2,
x=0.3;
(2)
x+20%x=1 4
,13 20
x=9 20
,13 20
x×9 20
=20 9
×13 20
,20 9
x=
.13 9
|
(1)x÷
=0.6,1 2
2x=0.6,
2x÷2=0.6÷2,
x=0.3;
(2)
x+20%x=1 4
,13 20
x=9 20
,13 20
x×9 20
=20 9
×13 20
,20 9
x=
.13 9