题目内容
解比例
|
| 4:4.5=
|
(1)
:
=
:x,
x=
×
,
x÷
=
÷
,
x=
;
(2)
=
,
1.5x=4×3.5,
1.5x÷1.5=14÷1.5,
x=9
;
(3)4:4.5=
,
4.5x=4×27,
4.5x÷4.5=108÷4.5,
x=24.
| 1 |
| 2 |
| 1 |
| 5 |
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 5 |
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 20 |
| 1 |
| 2 |
x=
| 1 |
| 10 |
(2)
| x |
| 4 |
| 3.5 |
| 1.5 |
1.5x=4×3.5,
1.5x÷1.5=14÷1.5,
x=9
| 1 |
| 3 |
(3)4:4.5=
| x |
| 27 |
4.5x=4×27,
4.5x÷4.5=108÷4.5,
x=24.
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