题目内容
若
+
=75%,
+
+
=
,则c=______.
| 1 |
| a |
| 1 |
| b |
| 1 |
| a |
| 1 |
| b |
| 1 |
| c |
| 5 |
| 6 |
因为
+
=75%,
+
+
=
,
所以
=
-75%=
-
=
,
所以c=12.
故答案为:12.
| 1 |
| a |
| 1 |
| b |
| 1 |
| a |
| 1 |
| b |
| 1 |
| c |
| 5 |
| 6 |
所以
| 1 |
| c |
| 5 |
| 6 |
| 5 |
| 6 |
| 3 |
| 4 |
| 1 |
| 12 |
所以c=12.
故答案为:12.
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