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twilaswift

  • 3 years ago

The perimeter of the rectangle is fifty-four feet. What is x? A rectangle is shown. The length is labeled fifteen feet and width is labeled x. thirty-nine feet twenty-seven feet twenty-four feet twelve feet

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  1. bloodrain
    • 3 years ago
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    i need the picture to figure it out :|

  2. ParthKohli
    • 3 years ago
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    The formula for the perimeter is \(P =2(\rm length + width)\).

  3. ParthKohli
    • 3 years ago
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    Since the length is \(15\) and the width is \(x\), we have this equation:\[2(15 + x) = 54\]Solve for \(x\).

  4. twilaswift
    • 3 years ago
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    |dw:1357571093615:dw|

  5. bloodrain
    • 3 years ago
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    ok figure it out based on the info parth gave (unless you want me to explain more)

  6. bloodrain
    • 3 years ago
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    would you like more explanation?

  7. twilaswift
    • 3 years ago
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    Yes, please.

  8. ParthKohli
    • 3 years ago
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    OK, so do you know that the perimeter is the sum of ALL sides?

  9. ParthKohli
    • 3 years ago
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    Notice that opposite sides in a rectangle are equal.|dw:1357571260853:dw|

  10. ParthKohli
    • 3 years ago
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    So the sum of sides will be \(15 + 15 + x + x\). But it is also given that the sum of all sides (perimeter) is \(54\).

  11. twilaswift
    • 3 years ago
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    Ok.

  12. ParthKohli
    • 3 years ago
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    So solve the equation \(15 + 15 + x + x = 54\)?

  13. bloodrain
    • 3 years ago
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    I have to go study for exams for a few min, so let parth finish =3

  14. twilaswift
    • 3 years ago
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    You have to figure out what x is, right?

  15. ParthKohli
    • 3 years ago
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    Yes! =)

  16. twilaswift
    • 3 years ago
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    OK so you divide 15 right?

  17. bloodrain
    • 3 years ago
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    I can't get on my study page o_o no don't divide by 15 subtract 15+15 from the perimeter and then divide by 2

  18. bloodrain
    • 3 years ago
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    that should be your answer

  19. twilaswift
    • 3 years ago
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    7.2?

  20. bloodrain
    • 3 years ago
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    no i think you did it wrong let me try

  21. bloodrain
    • 3 years ago
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    54-30=? then divide ? by 2 to get answer

  22. twilaswift
    • 3 years ago
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    11

  23. bloodrain
    • 3 years ago
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    o_o no, sorry but very close

  24. twilaswift
    • 3 years ago
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    12

  25. bloodrain
    • 3 years ago
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    yes :D

  26. bloodrain
    • 3 years ago
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    how did you get 11?

  27. bloodrain
    • 3 years ago
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    just wondering

  28. twilaswift
    • 3 years ago
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    22 divided by 2

  29. bloodrain
    • 3 years ago
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    ok then? whatever i wish you good luck on your hw or whatever it is your doing

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