SAT I 一日一问:2012年12月3日

 来源:    要点:SAT真题  
编辑点评: Collegeboard每天在其官方网站上公布一道SAT I考试的问题,供考生练习。你有没有答对?看看答案和解释是什么?

Mathematics > Standard Multiple Choice

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

The stopping distance of a car is the number of feet that the car travels after the driver starts applying the brakes. The stopping distance of a certain car is directly proportional to the square of the speed of the car, in miles per hour, at the time the brakes are first applied. If the car’s stopping distance for an initial speed of  20 miles per hour is 17 feet, what is its stopping distance for an initial speed of 40 miles per hour?

(A) 34 feet
(B) 51 feet
(C) 60 feet
(D) 68 feet
(E) 85 feet 

答案请点击下一页>>>

最新2024SAT真题信息由沪江留学网提供。

请输入错误的描述和修改建议,建议采纳后可获得50沪元。

错误的描述:

修改的建议: