2. 外语
  3. If x>0, which of the following is equal to 1.25 percent of x ?

If x>0, which of the following is equal to 1.25 percent of x ?

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问题 If x>0, which of the following is equal to 1.25 percent of x ?
选项 A、 
B、 
C、 
D、 
E、 
答案A
解析 Since the answer choices are fractional expressions, to answer the question you need to convert 1.25% of x to a fractional expression. Note that 1.25% is equivalent to the decimal 0.0125. Converting the decimal 0.0125 to a fraction and simplifying gives 0.0125 =. Thus, 1.25% of x is equal to 1/80 of x, or x/80 and the correct answer is Choice A.
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