【考点】mean平均数
【难度系数】★★★☆☆
【答案评析】由于题目指定单位是miles per hour, 因此考生首先要把24mins转化为0.4hour. 根据平均数的定义,本题的平均速度为:
答案为43.5
| SAT数学考试知识点解析汇总 | |
【考点】mean平均数
【难度系数】★★★☆☆
【答案评析】由于题目指定单位是miles per hour, 因此考生首先要把24mins转化为0.4hour. 根据平均数的定义,本题的平均速度为:
答案为43.5
| SAT数学考试知识点解析汇总 | |
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