题目内容
求未知数x
| x:0.2=3.8 | x:
| ||||||||
9:x=
|
| 0.6:x=
|
(1)
:x=
x=
x÷
=
÷
x=
;
(2)x:0.2=3.8
x=0.2×3.8
x=0.76;
(3)x:
=0.4
x=
×0.4
x=
;
(4)9:x=
x=9
x÷
=9÷
x=54;
(5)
:x=
x=
x÷
=
÷
x=
;
(6)0.6:x=
x=0.6
x÷
=0.6÷
x=1.
| 2 |
| 3 |
| 3 |
| 4 |
| 3 |
| 4 |
| 2 |
| 3 |
| 3 |
| 4 |
| 3 |
| 4 |
| 2 |
| 3 |
| 3 |
| 4 |
x=
| 8 |
| 9 |
(2)x:0.2=3.8
x=0.2×3.8
x=0.76;
(3)x:
| 2 |
| 7 |
x=
| 2 |
| 7 |
x=
| 4 |
| 35 |
(4)9:x=
| 1 |
| 6 |
| 1 |
| 6 |
| 1 |
| 6 |
| 1 |
| 6 |
| 1 |
| 6 |
x=54;
(5)
| 5 |
| 8 |
| 13 |
| 4 |
| 13 |
| 4 |
| 5 |
| 8 |
| 13 |
| 4 |
| 13 |
| 4 |
| 5 |
| 8 |
| 13 |
| 4 |
x=
| 5 |
| 26 |
(6)0.6:x=
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
x=1.
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