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katlin95

  • 3 years ago

If y varies directly as x, find the constant of variation if y = 12 when x = 1/3 A. 36 B. 4 C. 6 D. 12

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  1. katlin95
    • 3 years ago
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    @jim_thompson5910 a little confused on this?

  2. jim_thompson5910
    • 3 years ago
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    y = kx .. because "y varies directly as x" 12 = k*(1/3) ... plug in the given values solve for k

  3. katlin95
    • 3 years ago
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    I got 4

  4. jim_thompson5910
    • 3 years ago
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    no

  5. jim_thompson5910
    • 3 years ago
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    you do NOT do 12*(1/3) or 12/3

  6. katlin95
    • 3 years ago
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    no its A sorry lol

  7. jim_thompson5910
    • 3 years ago
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    you have multiplication of 1/3 on the right side so you to undo this, you multiply both sides by 3

  8. jim_thompson5910
    • 3 years ago
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    yes it's 36

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