重庆某快递公司规定:寄件不超过
的部分按起步价计费,超过
不足
,按照
收费;超过
不足
按照
收费,以此类推.某产家分别寄快递到重庆市内和北京,其中,寄往重庆市内的起步价为
元,超过部分
元/
;寄往北京的起步价为
元,超过部分
元/
.已知一个寄往重庆市内的快件,质量为
,收费13元;一个寄往北京的快件,质量为
,收费42元.如果一个寄往北京的快件,质量为
,应收费______ 元.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1b1bd0f94ae786c99ded377c0e79a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1b1bd0f94ae786c99ded377c0e79a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d776237845fded133ef34870d44afdb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d776237845fded133ef34870d44afdb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d776237845fded133ef34870d44afdb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b9e4c736308c2a02506090579202c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b9e4c736308c2a02506090579202c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f7c4a8558eff6427d22b6c0c855721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7002a354aa8394adb095cb65fc20d1f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91eb4489590b2c2cb165693022525595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f7c4a8558eff6427d22b6c0c855721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d776237845fded133ef34870d44afdb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1d54f349b3cc1a93ad8ca2e7e7f465e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e04ef288c603375142cd64fb615e945.png)
更新时间:2021-01-28 23:14:35
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【知识点】 其他问题(二元一次方程组的应用)
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【推荐1】已知点
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【推荐2】一个平行四边形的周长为60cm,两边的差是10cm,则平行四边形最长边是___ cm.
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