位置:首页 > SAT > SAT每日一题 > 正文
SAT官方网站每日一题系列(261)
日期:2013-05-31 16:59

(单词翻译:单击)

考试类型: 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

分享到
重点单词
  • initialn. (词)首字母 adj. 开始的,最初的,字首的 v
  • multipleadj. 许多,多种多样的 n. 倍数,并联
  • certainadj. 确定的,必然的,特定的 pron. 某几个,某