2. 外语
  3. A rope 55 feet long is cut into two pieces. If one piece is 23 feet longer than the other, what is the length, in feet, of the s

A rope 55 feet long is cut into two pieces. If one piece is 23 feet longer than the other, what is the length, in feet, of the s

admin2013-02-19  55
问题 A rope 55 feet long is cut into two pieces. If one piece is 23 feet longer than the other, what is the length, in feet, of the shorter piece?
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答案16
解析 The correct answer is 16. To solve this problem, set up an equation to determine the length of the shorter piece, substituting x for the unknown, shorter length:
x +(x+23)= 55
2x+23 = 55
2x=32
x=16
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