2. 外语
  3. At Store T, the dollar amount of sales for 2007 was what percent of the dollar amount of sales for 2008 ? Give your answer to th

At Store T, the dollar amount of sales for 2007 was what percent of the dollar amount of sales for 2008 ? Give your answer to th

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问题 At Store T, the dollar amount of sales for 2007 was what percent of the dollar amount of sales for 2008 ?
Give your answer to the nearest 0.1 percent.
______%
选项
答案108.7
解析 If A is the dollar amount of sales at Store T for 2007, then 8 percent of A, or 0.08A, is the amount of decrease from 2007 to 2008. Thus A - 0.08A = 0.92A is the dollar amount for 2008. Therefore, the desired percent can be obtained by dividing A by 0.92A, which equals= 1.0869565…Expressed as a percent and rounded to the nearest 0.1 percent, this number is 108.7%. Thus the correct answer is 108.7%(or equivalent).
This explanation uses the following strategies.
Strategy 4: Translate from a Figure to an Arithmetic or Algebraic Representation
Strategy 5: Simplify an Arithmetic or Algebraic Representation
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