题目内容
巧解密码我能行
(1)
=
(2)
x=
×
.
(1)
| 1.2 |
| 7.5 |
| 0.4 |
| x |
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 6 |
(1)
=
,
1.2x=7.5×0.4,
1.2x=3,
x=2.5;
(2)
x=
×
,
x=
,
x=
.
| 1.2 |
| 7.5 |
| 0.4 |
| x |
1.2x=7.5×0.4,
1.2x=3,
x=2.5;
(2)
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 4 |
| 1 |
| 12 |
x=
| 1 |
| 3 |
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