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March 28, 2017

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the revenue R from selling x units of a certain product is given by R=x(20-0.2x)
How many units must be sold to produce a revenue of $500?

  • math - ,

    You will need to solve for x in the following equation:

    500 = x(20-0.2x)

  • math - ,

    factor it out
    500 = 20x -0.2x^2
    0.2x^2 - 20x + 500 = 0
    divide the whole equation by 0.2
    x^2 - 100x + 2500 = 0
    (x-50)^2
    R=50

  • math - ,

    i got 500=20x-0.2x^2

    whats the next step?
    =\

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