题目内容
解比例
x:3.5=1.4:5.6
=
:
=x:
=
x:
=10:
1.24:x=2.48:0.4.
x:3.5=1.4:5.6
| x |
| 24 |
| 5 |
| 6 |
| 3 |
| 4 |
| 1 |
| 5 |
| 2 |
| 5 |
| 14 |
| x |
| 21 |
| 4 |
x:
| 2 |
| 5 |
| 2 |
| 7 |
1.24:x=2.48:0.4.
(1)x:3.5=1.4:5.6
5.6x=3.5×1.4
5.6x=4.9
x=0.875
(2)
=
6x=24×5
6x=120
x=20
(3)
:
=x:
x=
×
x=
x=
(4)
=
21x=56
x=
(5)x:
=10:
x=
×10
x=4
x=14
(6)1.24:x=2.48:0.4
2.48x=1.24×0.4
2.48x=0.496
x=0.2
5.6x=3.5×1.4
5.6x=4.9
x=0.875
(2)
| x |
| 24 |
| 5 |
| 6 |
6x=24×5
6x=120
x=20
(3)
| 3 |
| 4 |
| 1 |
| 5 |
| 2 |
| 5 |
| 1 |
| 5 |
| 3 |
| 4 |
| 2 |
| 5 |
| 1 |
| 5 |
| 3 |
| 10 |
x=
| 3 |
| 2 |
(4)
| 14 |
| x |
| 21 |
| 4 |
21x=56
x=
| 8 |
| 3 |
(5)x:
| 2 |
| 5 |
| 2 |
| 7 |
| 2 |
| 7 |
| 2 |
| 5 |
| 2 |
| 7 |
x=14
(6)1.24:x=2.48:0.4
2.48x=1.24×0.4
2.48x=0.496
x=0.2
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