2. 外语
  3. By what percent did the number of wren sightings increase from spring to summer? Give your answer to the nearest whole percent.

By what percent did the number of wren sightings increase from spring to summer? Give your answer to the nearest whole percent.

admin2015-03-24  69
问题 By what percent did the number of wren sightings increase from spring to summer?
Give your answer to the nearest whole percent.
______%
选项
答案67
解析 From spring to summer, the number of wren sightings increased from 18 to 30. Therefore the percent increase was()(100%), or 66.%. To the nearest whole percent, the percent increase was 67%. Thus the correct answer is 67.
This explanation uses the following strategy.
Strategy 4: Translate from a Figure to an Arithmetic or Algebraic Representation
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