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ihatealgebrasomuch

  • 3 years ago

can someone please explain to me how to use ratios? i completely forgot and need to know them for a test tomorrow! heres the question- The ratio of 2 consecutive sides of a parallelogram is 7:9. If the perimeter is 224cm, what is the length of the sides?

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  1. ihatealgebrasomuch
    • 3 years ago
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    can you explain in a bit more detail? @cherio12

  2. cherio12
    • 3 years ago
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    a ratio is one thing divided by another. Sorry, i guess drawing the picture like that isn't the best idea to get the point across..1 second

  3. cherio12
    • 3 years ago
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    for every 7 units on the one side you have 9 units on the other

  4. cherio12
    • 3 years ago
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    wait...idk if i like that picture either..>.<

  5. cherio12
    • 3 years ago
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    |dw:1355358572569:dw| try three...

  6. ihatealgebrasomuch
    • 3 years ago
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    okay so i would set 18x +7x equal to 224, and solve for x?

  7. cherio12
    • 3 years ago
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    18x+14x you have two sides of both

  8. ihatealgebrasomuch
    • 3 years ago
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    oh yeah, i mean 14, forgot to add that one ;P

  9. ihatealgebrasomuch
    • 3 years ago
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    i got the right answer! thank you so much!!! XXX

  10. cherio12
    • 3 years ago
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    no problem

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