某校七（2）班40名同学为“希望工程”捐款,共捐款100元。捐款情况如下表：捐款（元）1234人数67表格中捐款2元和3元的人数不小心被墨水污染已看不清楚，不过应用方程组可以解决这个问题。现在设捐款2

题干

某校七（2）班40名同学为“希望工程”捐款,共捐款100元。捐款情况如下表：

捐款（元）

1

2

3

4

人数

6

7

表格中捐款2元和3元的人数不小心被墨水污染已看不清楚，不过应用方程组可以解决这个问题。现在设捐款2元的有

名同学,捐款3元的有

名同学,请你列方程组并解出方程组。

上一题下一题 0.0难度选择题更新时间:2014-08-18 05:21:23

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