发布时间:2025-02-07 00:56:01
解:设1吨白灰块x元钱,
15%×234+85%x=295.1
0.15×234+0.85x=295.1
35.1+0.85x=295.1
0.85x=295.1-35.1
0.85x=260
x=260÷0.85
x≈305.88
答:1吨白灰块305.88元钱。
男朋友有香港户口但是没有永久居留证他家里人都在香港只有他一个还在内地我们要结婚的话需要准备什么
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