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anonymous

  • 5 years ago

The Perimeter of a Rectangular house is 122 ft. The Width is 5ft less than the length. Find the length and the width. For an equation, I wrote: (5-w)+(5-w)+l+l=122 Now im having problems solving it. Im not sure what Im doing wrong. PLEASE HELP!!!

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  1. myininaya
    • 5 years ago
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    l is length and w=l-5 where w is width

  2. myininaya
    • 5 years ago
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    2l+2(l-5)=122

  3. anonymous
    • 5 years ago
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    Oh, ok! I think I get it now! That's the first part of my equation.

  4. myininaya
    • 5 years ago
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    let me know what you get for l and w i will let you if you are right or not

  5. anonymous
    • 5 years ago
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    Ok thanks! Hold on . . .

  6. anonymous
    • 5 years ago
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    I think i got lost! I then got: 4l (4l)=122 Now, Im confused!

  7. myininaya
    • 5 years ago
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    ok we have 2l+2l-10=122 4l-10=122 4l=122+10=132 4l=132 l=132/4=33 so w=l-5=33-5=28

  8. anonymous
    • 5 years ago
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    ok wait! How did you get 10?

  9. myininaya
    • 5 years ago
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    2l+2(l-5)=122 i distribute the two

  10. anonymous
    • 5 years ago
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    LOL! I totally got it now! Im laughing cuz I forgot to distribute on my math test last week! OK! It all makes sense now! Thanks!

  11. myininaya
    • 5 years ago
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    cool

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