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Excalibur0126

  • one year ago

A 12-ft-by-15-ft rectangular swimming pool has a 3-ft-wide no-slip surface around it. What is the outer perimeter of the no-slip surface? A. 78 ft B. 78 ft^2 C. 198 ft D. 198 ft^2

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  1. anonymous
    • one year ago
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    You have to first add 3 to the legth and Width, what do you get?

  2. Excalibur0126
    • one year ago
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    Would it be 15-ft-by-18-ft or 18-ft-by-21-ft?

  3. anonymous
    • one year ago
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    it would be 15 by 18

  4. anonymous
    • one year ago
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    then you have to add 3 more because of the other side, so 18 by 21

  5. Excalibur0126
    • one year ago
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    That makes sense, thanks for the quick reply :)

  6. anonymous
    • one year ago
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    No problem! Good luck with your math

  7. anonymous
    • one year ago
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    A. \[2 ((12+6)+(15+6))=78 \]

  8. anonymous
    • one year ago
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    78 is the no-slip surface perimeter as requested in the problem statement.

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