5月27日 sat官方每日一题(数学).

　　时至今日，不知伙伴儿们的sat数学准备得如何了呢?本次sat考试资讯，澳际教育小编带来了一道来自官方的sat考试题目(数学)，大家不妨借此机会，试一试!话不多说，一起来看今天的文章!

　　Mathematics>Standard Multiple Choice

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

　　A rental car company charges $45 per day for therental of a midsize car. Additionally, there is a tax of 8% on all car rentals. Which of the following functions c best represents the total charge, including tax, in dollars, to rent the midsize car for d days?

　　A.c(d)=45.08d

　　B.c(d)=45d+1.08

　　C.c(d)=45*0.08d

　　D.c(d)=45*1.08d

　　澳际温馨提示：各sat考生在看过上述sat考试题目之后，自己分析解答，再看相应的sat考试答案及解析，会更有效哦!

　　答案：D

　　解析：

　　Since the daily charge for the car is $45, the tax rate is 8%, and the rental is for d days, the total rental charges can be represented by the expression 45*1.08*d.

　　Note that adding an 8% tax to the original amount is the same as using 108% of the original amount, which is achieved by multiplying by 1.08.

　　Since c(d) represents the total rental charges, including tax, over d days, the function that best models this is: c(d)=45*1.08d.

　　好啦，以上，就是澳际与sat备考生们分享的sat考试题目了。不管大家答对还是答错，都希望各位能够正确对待，认真看看相关答案解析!想了解更多sat考试讯息?澳际教育sat培训频道随时欢迎您!感谢阅读!

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