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dhudz23

A rectangular flower garden with dimensions 3m by 7m is surrounded by the walk of uniform width. If the are of the walk is 11 sq. m, what is the width in meters?

  • one year ago
  • one year ago

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  1. zordoloom
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    |dw:1358847023244:dw|

    • one year ago
  2. zordoloom
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    Do you know where to go from here?

    • one year ago
  3. dhudz23
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    Not really..

    • one year ago
  4. zordoloom
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    Do you mind if I continue?

    • one year ago
  5. dhudz23
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    Not at all.

    • one year ago
  6. zordoloom
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    |dw:1358847340760:dw|

    • one year ago
  7. zordoloom
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    Do you think you can solve that equation?

    • one year ago
  8. dhudz23
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    Not sure.. I could but it would take me a while and i wouldn't be to confident of my answer.

    • one year ago
  9. zordoloom
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    (7+2x)(3 +2x)-11=21---> 4x^2+20x-11=0----> now solve this using the quad. equation. x=-5.5 and x=.5 The value can only be positive therefore the width can only be x=.5 So the width around the garden is 1/2 m or .5m. Whichever method your prefer.

    • one year ago
  10. zordoloom
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    Does that help?

    • one year ago
  11. dhudz23
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    Yes it does, thank you!

    • one year ago
  12. zordoloom
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    You're welcome!

    • one year ago
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