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ZX-900A942F77Linear inequalities in one or two variables · 第 1 题
Linear inequalities in one or two variables · 原库模块 1 · Q1 原库参考解析
Adam’s school is a 20-minute walk or a 5-minute bus ride away from his house. The bus runs once every 30 minutes, and the number of minutes, w, that Adam waits for the bus varies between 0 and 30. Which of the following inequalities gives the values of w for which it would be faster for Adam to walk to school?
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