SAT官方每日一题附答案和解析[数学](2014年12月27日)
日期:2014-12-28 15:33
(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.
If (5x)-3 = 2a, then ((5x)-3)/2 =
(A) a/4
(B) a/2
(C) a
(D) 2a
(E) 4a
答案和解析
答案:C
解析:
You are given that (5x) minus 3 = 2a. Dividing both sides of the equation by 2 gives((5x)-3) over 2 = a . Thus, the answer is a.