题目内容
解比例
=
x:
=
:
3.6:x=0.2:2.4.
| 2.5 |
| x |
| 5 |
| 12 |
x:
| 3 |
| 4 |
| 1 |
| 6 |
| 3 |
| 16 |
3.6:x=0.2:2.4.
(1)
=
5x=2.5×12
5x=30
x=6
(2)x:
=
:
x=
×
x=
x=
(3)3.6:x=0.2:2.4
0.2x=3.6×2.4
0.2x=8.64
x=43.2
| 2.5 |
| x |
| 5 |
| 12 |
5x=2.5×12
5x=30
x=6
(2)x:
| 3 |
| 4 |
| 1 |
| 6 |
| 3 |
| 16 |
| 3 |
| 16 |
| 3 |
| 4 |
| 1 |
| 6 |
| 3 |
| 16 |
| 1 |
| 8 |
x=
| 2 |
| 3 |
(3)3.6:x=0.2:2.4
0.2x=3.6×2.4
0.2x=8.64
x=43.2
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