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anonymous

  • 5 years ago

the proportion is blank over 4 = 21 over 12 and i have to solve it.

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  1. anonymous
    • 5 years ago
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    so you have blank/4=21/12 what do you have to take 4 times to get 12, answer 3, or 12/3 = 4 so 21/3 = 7 the blank is 7

  2. anonymous
    • 5 years ago
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    wow thank you

  3. anonymous
    • 5 years ago
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    6 over 10 equals 9 over y i need to solve it

  4. anonymous
    • 5 years ago
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    wer're going to do this one a little different cross multiply: 6 * y = 10 * 9 6*y = 90 divide both sides by 6, so 90/6 = 15

  5. anonymous
    • 5 years ago
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    come again?

  6. anonymous
    • 5 years ago
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    im not good at math

  7. anonymous
    • 5 years ago
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    you have 6 over 10 = 9 over something or 6/10 = 9/box take 9/6 = 3/2 reduced then take 10 *(3/2) = (10*3)/2=30/2=15

  8. anonymous
    • 5 years ago
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    so the blank is 15?

  9. anonymous
    • 5 years ago
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    you're right

  10. anonymous
    • 5 years ago
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    oh okay

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spraguer (Moderator)
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