题目内容
解比例.
0.4:X=
| X:
| X:
|
(1)0.4:X=
:
X=0.4×
X=0.15,
x÷
=0.15÷
X=0.375;
(2)X:
=
:
,
x=
×
,
x=
,
x÷
=
÷
,
x=1.5;
(3)X:
=
:
,
x=
×
,
x=
,
x÷
=
÷
,
x=1.8.
| 2 |
| 5 |
| 3 |
| 8 |
| 2 |
| 5 |
| 3 |
| 8 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
X=0.375;
(2)X:
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 3 |
| 1 |
| 3 |
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 2 |
| 1 |
| 3 |
x=1.5;
(3)X:
| 1 |
| 2 |
| 3 |
| 5 |
| 1 |
| 6 |
| 1 |
| 6 |
| 1 |
| 2 |
| 3 |
| 5 |
| 1 |
| 6 |
| 3 |
| 10 |
| 1 |
| 6 |
| 1 |
| 6 |
| 3 |
| 10 |
| 1 |
| 6 |
x=1.8.
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