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yazthespaz

  • 2 years ago

y varies jointly with p and q. When p = 4 and q = 5, y = 60. Find y when p = 5 and q = 8.

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  1. yazthespaz
    • 2 years ago
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    @Brittni0605 could you help me if your not busy? Thank You!

  2. Brittni0605
    • 2 years ago
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    Hmm, gimme a sec plz

  3. yazthespaz
    • 2 years ago
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    OKay thaks

  4. mark_o.
    • 2 years ago
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    y varies jointly with p and q. the formula would be y=kpq 60=k(4)5 solve for k then Find y when p = 5 and q = 8.

  5. mark_o.
    • 2 years ago
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    can you do the next step?

  6. Brittni0605
    • 2 years ago
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    @yazthespaz , you can follow @mark_o. I need a few min, sorry

  7. yazthespaz
    • 2 years ago
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    y= k(5)(8)= 40 so the answer is y = k (40)

  8. yazthespaz
    • 2 years ago
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    which will equal y = 40

  9. yazthespaz
    • 2 years ago
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    @Brittni0605 okay, its fine

  10. mark_o.
    • 2 years ago
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    yes correct but did you do how to solve for k earlier

  11. mark_o.
    • 2 years ago
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    .60=k(4)5

  12. yazthespaz
    • 2 years ago
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    yes thanks

  13. mark_o.
    • 2 years ago
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    60=k(4)5 60=k(20) so 60/20=k k=__? ok good luck now it seems you got now the correct answer... :D

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