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GOODMAN

  • 4 years ago

If y varies jointly as x and z and y=80 when x=5 and z=8, find y when x=16 and z=2

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  1. Diyadiya
    • 4 years ago
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    y varies jointly so y=k * xz

  2. Diyadiya
    • 4 years ago
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    80=k *5*8

  3. GOODMAN
    • 4 years ago
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    and jus solve for k?

  4. Diyadiya
    • 4 years ago
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    Yeah find out the value of k first

  5. GOODMAN
    • 4 years ago
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    okie dokie!! thanks diya!!!

  6. Diyadiya
    • 4 years ago
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    then you've to substitute it in y= k *xz for the new value of x & z and find out y

  7. GOODMAN
    • 4 years ago
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    yea, okay, gotcha!! thank you thank you!!!!

  8. Diyadiya
    • 4 years ago
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    hehe :) Anytime !!

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