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在“0.39×258+258×0.26+B×258＝258”中，B=．
题目详情
在“0.39×2
+2
×0.26+B×2
＝2
”中，B=______．0.39×2
+2
×0.26+B×2
＝2
”中，B=______．
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▼优质解答
答案和解析
0.39×2
+2
×0.26+B×2
=2
2
×（0.39+0.26+B）=2
2
×（0.65+B）=2
2
×（0.65+B）÷2
=2
÷2
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
5 5 58 8 8+2
×0.26+B×2
=2
2
×（0.39+0.26+B）=2
2
×（0.65+B）=2
2
×（0.65+B）÷2
=2
÷2
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
5 5 58 8 8×0.26+B×2
=2
2
×（0.39+0.26+B）=2
2
×（0.65+B）=2
2
×（0.65+B）÷2
=2
÷2
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
5 5 58 8 8=2
2
×（0.39+0.26+B）=2
2
×（0.65+B）=2
2
×（0.65+B）÷2
=2
÷2
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
5 5 58 8 8
2
×（0.39+0.26+B）=2
2
×（0.65+B）=2
2
×（0.65+B）÷2
=2
÷2
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
5 5 58 8 8×（0.39+0.26+B）=2
2
×（0.65+B）=2
2
×（0.65+B）÷2
=2
÷2
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
5 5 58 8 8
2
×（0.65+B）=2
2
×（0.65+B）÷2
=2
÷2
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
5 5 58 8 8×（0.65+B）=2
2
×（0.65+B）÷2
=2
÷2
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
5 5 58 8 8
2
×（0.65+B）÷2
=2
÷2
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
5 5 58 8 8×（0.65+B）÷2
=2
÷2
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
5 5 58 8 8=2
÷2
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
5 5 58 8 8÷2
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35． ÷2
5 5 58 8 8
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
| 5 |
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| 8 |
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2
| 5 |
| 8 |
| 5 |
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2
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
| 5 |
| 8 |
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
| 5 |
| 8 |
2
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
| 5 |
| 8 |
| 5 |
| 8 |
| 5 |
| 8 |
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
| 5 |
| 8 |
| 5 |
| 8 |
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35． ÷2
| 5 |
| 8 |
0.65+B=1
0.65+B-0.65=1-0.65
B=0.35．
故答案为：0.35．
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