题目内容
解比例
=
:8=
:
:
=
:
.
| 6 |
| 3 |
| 14 |
| 2 |
| 3 |
| 1 |
| 2 |
6
6
| 6 |
| 10 |
| 2 |
| 5 |
| 2 |
| 5 |
| 1 |
| 2 |
| 1 |
| 3 |
分析:有比例的意义两内向之即等于两外项之积即可得出.
解答:解:(1)
=
3x=6×14
x=28;
(2)
:8=
:x
x=8×
x=6;
(3)
:x=
:
.
x=
×
x=
.
| 6 |
| x |
| 3 |
| 14 |
3x=6×14
x=28;
(2)
| 2 |
| 3 |
| 1 |
| 2 |
| 2 |
| 3 |
| 1 |
| 2 |
x=6;
(3)
| 6 |
| 10 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 2 |
| 6 |
| 10 |
| 1 |
| 3 |
x=
| 2 |
| 5 |
点评:这三题考查了解比例的方法.
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