题目内容
51-[26.5×0.375-(8.3-7
)+A÷2
]×
=50,A=______.
| 37 |
| 40 |
| 2 |
| 3 |
| 4 |
| 45 |
51-[26.5×0.375-(8.3-7
)+A÷2
]×
=50,
[9.9375-8.3+7.925)+A×
]×
=1,
[9.5625+A×
]×
=1,
[9.5625+A×
]×
×
=1×
,
9.5625+A×
=
,
A×
=11.25-9.5625,
A×0.375=1.6875,
A=4.5.
故答案为:4.5.
| 37 |
| 40 |
| 2 |
| 3 |
| 4 |
| 45 |
[9.9375-8.3+7.925)+A×
| 3 |
| 8 |
| 4 |
| 45 |
[9.5625+A×
| 3 |
| 8 |
| 4 |
| 45 |
[9.5625+A×
| 3 |
| 8 |
| 4 |
| 45 |
| 45 |
| 4 |
| 45 |
| 4 |
9.5625+A×
| 3 |
| 8 |
| 45 |
| 4 |
A×
| 3 |
| 8 |
A×0.375=1.6875,
A=4.5.
故答案为:4.5.
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