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semperfilove

  • 2 years ago

y varies directly as x. When y = 15, x = 4. Find the constant of variation and use it to determine the value for y when x = 6.

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  1. Hope_nicole
    • 2 years ago
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    set it up as a proportion.

  2. semperfilove
    • 2 years ago
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    Then, wouldn't you do cross mulitply & divide ?

  3. Hope_nicole
    • 2 years ago
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    |dw:1364319403425:dw|

  4. SerikMB
    • 2 years ago
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    y=k*x

  5. SerikMB
    • 2 years ago
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    k is a constant that vary

  6. SerikMB
    • 2 years ago
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    15=k4, k=4/15, then use it in the y=4/15*6

  7. Softballgirl372015
    • 2 years ago
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    k=15/4

  8. Softballgirl372015
    • 2 years ago
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    then you do 15/4 * 6

  9. SerikMB
    • 2 years ago
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    yep, sorry wrong calculation

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