2016是新SAT考试实施的第一年，很多变化的内容对于备考的同学们来说还不是很了解，要想取得高分还是要有更多的认识才行，所以今天
2016年4月15日SAT数学题
An art gallery displays a large painting in the center of a wall that is 24 feet (ft) end text right parenthesis wide. The painting is 10ft wide. Which of the following equations can be used to find the distance, x, in feet, from either end of the wall to the corresponding edge of the painting?
A. |x-10|=12
B. 2|x-12|=10
C. 2|x-10|=12
D. |x-12|=10
解释：
Choice B is correct.The center of the wall is a distance of 1/2*(24)=12 feet from the left end of the wall. If x is the distance from a painting edge to its corresponding end of the wall, then |x-12| is the distance from the painting edge to the center of the wall.
If the painting is centered, then 2|x-12| represents the width of the painting.
Since the painting is 10ft wide, we have 2|x-12|=10.
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