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  1. #1
    INTP cannadian's Avatar
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    Thumbs up Calc I related rates problem - 1.8K REPS

    The price (in dollars) p and the quantity demanded q are related by the equation: p^2+2q^2=1100.
    If R is revenue, dR/dt can be expressed by the following equation: dR/dt=Adp/dt, where A is a function of just q.

    What is A?
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    INTP cannadian's Avatar
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    bump - reps for the answer
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    INTP cannadian's Avatar
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    bumpppp
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  4. #4
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    Answer is A = 550/q

    You get that from R=p*q
    dr/dt = p*dq/dt + q*dp/dt

    And the rest is playing with algebra. If you need indepth, PM me.
    Last edited by ArtEh; 10-30-2012 at 09:53 PM.
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