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anonymous

  • one year ago

The width of a rectangle is 6 in. less than its length. The perimeter is 68 in. What is the width of the rectangle? in.

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  1. anonymous
    • one year ago
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    I think its 14

  2. Vocaloid
    • one year ago
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    nope, let's start from the beginning

  3. Vocaloid
    • one year ago
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    let L = length let W = width W = L - 6, with me so far?

  4. anonymous
    • one year ago
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    yes

  5. Vocaloid
    • one year ago
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    ok, now we use the formula for perimeter perimeter = 68 = 2(L+W), with me so far?

  6. anonymous
    • one year ago
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    yup:)

  7. Vocaloid
    • one year ago
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    good, now we can rewrite our formula we know that W = L - 6, so we can replace "W" with "L-6" whenever we see it perimeter = 2(L+W) = 2(L+L-6), understand so far?

  8. anonymous
    • one year ago
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    Lol Ya

  9. Vocaloid
    • one year ago
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    good, now let's put L + L together to get 2L perimeter = 2(2L-6) = 68 know how to solve for L now?

  10. Vocaloid
    • one year ago
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    actually, you were right, W = 14, my bad ;_:

  11. anonymous
    • one year ago
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    Lol I thought so... I'll still give you a medal:) @Vocaloid

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