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    Two variables are connected by the relation: A∝1/B2.
    B is increased by 40%.
    Describe the change in A in percentage terms.
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    (Original post by Rj2018)
    Two variables are connected by the relation: A∝1/B2.
    B is increased by 40%.
    Describe the change in A in percentage terms.
    Anybody?
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    wow you waited 3 minutes before posting "Anybody", such impatience.
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    (Original post by wiseguy99)
    wow you waited 3 minutes before posting "Anybody", such impatience.
    It really is ngl
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    Gonna try again, anyone???
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    (Original post by Rj2018)
    Two variables are connected by the relation: A∝1/B2.
    B is increased by 40%.
    Describe the change in A in percentage terms.
    A \propto \frac{1}{B^2}? What's that '2' in your expression?

    Anywho, what does it actually mean for A to be proportional to that?
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    (Original post by Rj2018)
    Two variables are connected by the relation: A∝1/B2.
    B is increased by 40%.
    Describe the change in A in percentage terms.
    A \propto \frac{1}{B^2}

    We can rewrite this as:

    A=\frac{k}{B^2}

    What is the ratio of the values of A when B is multiplied by 1.4?
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    (Original post by RogerOxon)
    A \propto \frac{1}{B^2}

    We can rewrite this as:

    A=\frac{k}{B^2}

    What is the ratio of the values of A when B is multiplied by 1.4?
    Another way to look at this is:

    A\propto \frac{1}{B^2}

    \therefore \frac{A_1}{A_0}=\frac{\frac{1}{B  _1^2}}{\frac{1}{B_0^2}}=\frac{B_  0^2}{B_1^2}

    What is the ratio of the values of when is multiplied by (i.e. increased by 40%)?
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    .im gonna go ahead and say a is increased by 20% because idk it's just me saying random stuff don't dig at me 🤤
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    (Original post by who cares lmao)
    .im gonna go ahead and say a is increased by 20% because idk it's just me saying random stuff don't dig at me 🤤
    Well why say it at all then lol, that's not helpful to OP.
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    (Original post by who cares lmao)
    .im gonna go ahead and say a is increased by 20% because idk it's just me saying random stuff don't dig at me 🤤
    Username checks out.
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    Thanks for all your help guys! Finally got it. It was 49% decrease!
 
 
 
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