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16 January, 05:14

Ricardo and Kim rowed their canoes from their base camp to a fishing camp. They rowed a distance of x miles upstream on one river, (3x2 - 9) miles downstream on another river, and (2x + 9) miles across a calm lake. Which expression is equivalent to the total distance, in miles, Ricardo and Kim rowed their canoes?

Answer

3x2 + 3x

6x2

3x2 + 2x

5x2

+1
Answers (1)
  1. 16 January, 07:56
    0
    The total distance is D=x+3x2 - 9 + 2x + 9 = 3x2 + 3x

    the answer is A : 3x2 + 3x
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