新SAT数学OG真题Test04 Section4 Q29

2022-06-02 05:51:57

  新

  If x is the average (arithmetic mean) of m and 9, y is the average of 2m and 15, and z is the average of 3m and 18, what is the average of x, y, and z in terms of m?

  A . m+6

  B . m+7

  C . 2m+14

  D . 3m+21

  答案解析

  Choice В is correct.

  

  以下为新SAT OG Test04 数学 Section4 Q29真题,考察大家对于代数和函数相关知识的掌握,这类知识点是每次考察重点,也经常会出难题。考生把这部分知识融汇贯通,明确知识点之间的内在关系,是获得高分的保证。

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