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anonymous

  • one year ago

What does inversely proportional mean?

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  1. anonymous
    • one year ago
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    Inversely Proportional: when one value decreases at the same rate that the other increases.

  2. anonymous
    • one year ago
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    examples?

  3. Nnesha
    • one year ago
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    i don't think s i can explain but i know the equation for inverse prp \[\huge\rm y=\frac{ k }{ x }\]haha :P

  4. anonymous
    • one year ago
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    What is the K?

  5. Zale101
    • one year ago
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    K is constant

  6. Nnesha
    • one year ago
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    ^what she said :) constant of variation

  7. Zale101
    • one year ago
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    In this equation, we know that if y increases, x decreases and vice versa

  8. anonymous
    • one year ago
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    The time it takes to erect a bonfire is inversely proportional to the number of students doing the work. If it takes 20 students 1.5 hours to do the job, how long will it take 35 students to do the job, to the nearest minute?

  9. Nnesha
    • one year ago
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    time = y students= x

  10. anonymous
    • one year ago
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    THis is a super confusing problem

  11. Nnesha
    • one year ago
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    okay equation for inverse variation is y =k/x <--(y inversely proportional to x) read the question **time it takes to erect a bonfire is inversely proportional to the number of students** time inversely proportional to number of students let time = t students = S so equation would be \[\huge\rm t =\frac{ k }{ s }\]

  12. Nnesha
    • one year ago
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    when t =1.5 s=20 so plug in t and s value solve for k (constant of variation)

  13. anonymous
    • one year ago
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    ohhhh okay so 30

  14. Nnesha
    • one year ago
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    that's k you need y value when =35 so now use the same equation solve for y

  15. Nnesha
    • one year ago
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    \[\rm y=\frac{ 30 }{ 35 }\]

  16. anonymous
    • one year ago
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    6/7

  17. anonymous
    • one year ago
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    6/7 x 60 = 360/7 = 51.43 minutes

  18. Nnesha
    • one year ago
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    ***to the nearest minute*** so 60 sec in a mint multiply that by 60

  19. anonymous
    • one year ago
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    so 51 minutes?

  20. Nnesha
    • one year ago
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    ye

  21. anonymous
    • one year ago
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    got it thanks!!

  22. Nnesha
    • one year ago
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    my pleasure

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