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canilearnMath

if Y varies inversely as X , when Y=4 and X=15 .?

  • one year ago
  • one year ago

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  1. Kris5
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    what's the rest of the question?

    • one year ago
  2. canilearnMath
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    none. thats only.

    • one year ago
  3. LogicalApple
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    If y varies inversely with x that means as y increases, then x decreases. I.e., y = k/x for some constant k. If you can determine this constant of proportionality, k, then you have the expression you seek. You are given y = 4 when x = 15. 4 = k/15. Solve for k.

    • one year ago
  4. canilearnMath
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    60

    • one year ago
  5. canilearnMath
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    k=60 ?

    • one year ago
  6. LogicalApple
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    Right. So now that you know k = 60, what would the general equation become?

    • one year ago
  7. canilearnMath
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    i always solve for k ?

    • one year ago
  8. LogicalApple
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    Pretty much.

    • one year ago
  9. canilearnMath
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    how to solve for k ? multiply the Y and X?

    • one year ago
  10. canilearnMath
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    thanks :)

    • one year ago
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