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brucebaner

  • one year ago

help me with Similarity and Scale

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  1. brucebaner
    • one year ago
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  2. brucebaner
    • one year ago
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    help me @AriPotta

  3. aripotta
    • one year ago
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    yay proportion time~ side MN corresponds to side TU side NO corresponds to side UV so...\[\frac{ MN }{ TU }=\frac{ NO }{ UV }\]

  4. brucebaner
    • one year ago
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    okay

  5. aripotta
    • one year ago
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    MN = 2.2 TU = x NO = 4.1 UV = 12.3 \[\frac{ 2.2 }{ x }=\frac{ 4.1 }{ 12.3 }\] cross-multiply and solve for x

  6. brucebaner
    • one year ago
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    66 or 6.6?

  7. aripotta
    • one year ago
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    2.2(12.3) = 4.1x

  8. brucebaner
    • one year ago
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    so its 4.1?

  9. aripotta
    • one year ago
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    no..

  10. aripotta
    • one year ago
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    what's 2.2 time 12.3

  11. aripotta
    • one year ago
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    times*

  12. brucebaner
    • one year ago
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    like that?

  13. aripotta
    • one year ago
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    it's not 22, it's 2.2

  14. brucebaner
    • one year ago
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    lol thx

  15. brucebaner
    • one year ago
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    so the answer is 2.2?

  16. aripotta
    • one year ago
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    no.

  17. brucebaner
    • one year ago
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    27.06?

  18. aripotta
    • one year ago
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    |dw:1434318543856:dw|

  19. aripotta
    • one year ago
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    so 2.2(12.3) = 4.1x is what we get after cross-multiplying. make sense?

  20. brucebaner
    • one year ago
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    so its 4.1?

  21. brucebaner
    • one year ago
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    im sorry im not good at this

  22. aripotta
    • one year ago
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    no. that is an equation. we can use that equation to solve for x.

  23. aripotta
    • one year ago
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    2.2(12.3) = 4.1x what is 2.2 times 12.3?

  24. brucebaner
    • one year ago
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    27.06

  25. aripotta
    • one year ago
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    right. so 27.06 = 4.1x what should we do now to get x by itself?

  26. brucebaner
    • one year ago
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    okay

  27. aripotta
    • one year ago
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    lol that was a question. what do we do next?

  28. brucebaner
    • one year ago
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    i dont know im new to this

  29. aripotta
    • one year ago
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    what's the opposite of multiplication

  30. brucebaner
    • one year ago
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    divide

  31. aripotta
    • one year ago
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    right. so we're going to divide both sides of the equation by 4.1 to get our answer.

  32. brucebaner
    • one year ago
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    i got 6.6

  33. aripotta
    • one year ago
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    yes :) that is right.

  34. brucebaner
    • one year ago
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    can you help me with more?

  35. aripotta
    • one year ago
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    i guess so. open a new question and tag me

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