SAT数学每日练习【题目+重点词汇+解析】!SAT数学对于国内考生来说并不难,但是同样不能忽视有效的备考复习。下面智课网为大家整理了SAT数学每日练习题,考生可以根据题目和重点词汇以及解析,总结和掌握知识点。

  Read the following SAT test question and then click on a button to select your answer.

  In the US House of Representatives, about 12.2% of the representatives are from the state of California .If there are 435 representatives, how many are not from California?

  A.12.2

  B.53

  C.382

  D.488

  重点单词:

  subtract [s?b'tr?kt] vt. 扣掉

  equation [i'kwei??n] n. 相等,方程(式), 等式,均衡

  multiple ['m?ltipl] adj. 许多,多种多样的

  variable ['v??ri?bl] adj. 可变的,易变的

  determine [di't?:min] v. 决定,决心,确定,测定

  答案:C

  解析:

  Choice C is correct. Use the variable r to represent the number of representatives from California, set up an equation to determine how many representatives are from California.

  0.122*435=r, and so r=53.07

  There are 53 representatives from California.

  To find the number of representatives not from California, subtract the number of representatives from California from the total number of representatives.

  435-53=382

  Therefore, 382 of the representatives are not from California.

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