【官方】SAT数学每日一题附答案和解析(2018年2月5日)

小站整理2018-02-07 10:02:20

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摘要:每日一题的内容是由sat官方所出,质量虽不比真题,但备考期间,由于有效备考资料珍贵有限。大家可以每天拿官方的Daily Practice来练手。以下是2018年2月5日的SAT数学练习部分:

每日一练:数学

Mathematics>Standard Multiple Choice

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

In the US House of Representatives, about 12.2% ofthe 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

答案:C

解析:

Choice C is correct. Use the variable r to representthe number of representatives from California, set upan equation to determine how manyrepresentatives 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 ofrepresentatives from California from the total number of representatives.

435-53=382

Therefore, 382 of the representatives are not from California.

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