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anonymous

  • one year ago

The ratio of the perimeters of two rectangles is 4 to 7. The perimeter of the larger rectangle is 42 inches. What is the perimeter of the smaller rectangle? A. 10.5 inches B. 73.5 inches C. 28 inches D. 24 inches

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  1. anonymous
    • one year ago
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    It's c?

  2. xapproachesinfinity
    • one year ago
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    let's name the perimeter of the small x and the large y so \[\frac{y}{x}=4/7\] they gave us one perimeter y=42 so \[\frac{42}{x}=4/7\]

  3. anonymous
    • one year ago
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    42/7 = 6 x4 = 24

  4. calculusxy
    • one year ago
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    This is a proportion of smaller to larger: 4. x -- = --- 7. 42

  5. anonymous
    • one year ago
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    Oh...D...Sorry. I read it wrong. Thank you. All of you.

  6. calculusxy
    • one year ago
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    So just solve for x.

  7. calculusxy
    • one year ago
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    You're welcome :)

  8. xapproachesinfinity
    • one year ago
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    i turned out i wrote it the wrong way should be smaller to larger

  9. anonymous
    • one year ago
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    It's okey

  10. xapproachesinfinity
    • one year ago
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    but you got the point :)

  11. anonymous
    • one year ago
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    I passed C:

  12. anonymous
    • one year ago
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    I say D

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