题目内容
解比例:
:x=
:6
9:2.5=3.6:x.
| 2 |
| 3 |
| 4 |
| 7 |
9:2.5=3.6:x.
(1)
:x=
:6
x=
×6
x÷
=4÷
x=7;
(2)9:2.5=3.6:x
9x=2.5×3.6
9x÷9=9÷9
x=1.
| 2 |
| 3 |
| 4 |
| 7 |
| 4 |
| 7 |
| 2 |
| 3 |
| 4 |
| 7 |
| 4 |
| 7 |
| 4 |
| 7 |
x=7;
(2)9:2.5=3.6:x
9x=2.5×3.6
9x÷9=9÷9
x=1.
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