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erika28

  • 4 years ago

If y varies inversely as x, and y = 10 when x = 7, find y for the x-value of 10. 3 2 6 7

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  1. Mathhelp346
    • 4 years ago
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    when something is inversely related : y=k/x DONT FORGET THE CONSTANT k :D now lets solve for k (since its a constant, it ALWAYS STAYS THE SAME :D) 10=k/7, thus k=70 now lets make the second and final equation, y=70/10 thus, y=7

  2. erika28
    • 4 years ago
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    thank youu!:)

  3. Mathhelp346
    • 4 years ago
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    np :)

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