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kenneyfamily

  • 3 years ago

y varies jointly as x and z and inversely as the square of w. y = 3 when x = 3, z = 10, and w = 2. Find y when x = 4, z = 20, and w = 4.

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  1. kenneyfamily
    • 3 years ago
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    @Skaematik

  2. Skaematik
    • 3 years ago
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    so y is directly proportional to x and z, y is inversely proportional to square of w|dw:1353303106192:dw|

  3. kenneyfamily
    • 3 years ago
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    a. y = 2 b. y = 1 c. y = 8 d. y = 4

  4. kenneyfamily
    • 3 years ago
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    hmm

  5. Skaematik
    • 3 years ago
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    did you find k

  6. kenneyfamily
    • 3 years ago
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    is it 4?

  7. kenneyfamily
    • 3 years ago
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    @Skaematik

  8. Skaematik
    • 3 years ago
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    its 2

  9. kenneyfamily
    • 3 years ago
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    but then y=10 right? thats not a choice :(

  10. Skaematik
    • 3 years ago
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    ah whoops, i meant y=2. k = 0.4

  11. kenneyfamily
    • 3 years ago
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    thanks!

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