题目内容
| 3 |
| 4 |
| 6 |
| 7 |
| 12 |
| 5 |
分析:依据比例的基本性质即可作答.
解答:解:
:
=x:
,
x=
×
,
x=
,
x=
×
,
x=2
.
| 3 |
| 4 |
| 6 |
| 7 |
| 12 |
| 5 |
| 6 |
| 7 |
| 3 |
| 4 |
| 12 |
| 5 |
| 6 |
| 7 |
| 9 |
| 5 |
x=
| 9 |
| 5 |
| 7 |
| 6 |
x=2
| 1 |
| 10 |
点评:此题主要考查比例的基本性质.
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| 3 |
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| 3 |
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