SAT官方每日一题附答案和解析[数学](2016年3月24日)
日期:2016-03-24 10:25
(单词翻译:单击)
每日一题
Mathematics>Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
Hareg's motorcycle uses 1 gallon of gas for every 30 miles traveled when traveling at an average speed of 60 miles per hour. The motorcycle's gas tank has 5 gallons at the beginning of a trip. If Hareg's motorcycle travels at an average speed of 60 miles per hour, which of the following functions best models the number of gallons of gas, g(h), remaining in the tank h hours after the trip begins?
(A) g(h)= 5-2h
(B) g(h)= 5-2/h
(C) g(h)= (5-60h)/30
(D) g(h)= (5-30h)/60
答案和解析
答案:A
解析:
Choice A is correct.