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23 July, 14:18

The equation 25=1.5x+.5y can be used to represent their profit of $25, where x represents the number of cookies and y respresents the lemonade. What is the slope represented by this equation?

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  1. 23 July, 16:03
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    Equation: 25=1.5x + 0.5y represents the profit of $25

    x represents number of cookies

    y represents the lemonade

    Solution:

    Plot a graph of number of lemonades (in the y-axis) against number of cookies (in the x-axis)

    The equation of the straight line should be:

    0.5y = - 1.5x + 25

    Divide through by 0.5 to get;

    y = - 3x + 50

    The slope is - 3 which means that three lemonades are used to produce one cookie.
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