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29 September, 12:23

The number of math problems solved in a class,?, varies directly with the length of time x and inversely with the number of student questions in that time y. If in 6 minutes of class there were 14 student questions and a total of 5 problems that were solved, then write? as a function of x and y.? = x/y function equation editor

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  1. 29 September, 12:27
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    n = 35y/3x

    Step-by-step explanation:

    Let the number of problems solved be n.

    Now what do we know?

    The value n varies directly with the length of time x and inversely with the number of students question in that time y.

    Let's use a constant of proportionality k, the following observations are made:

    ny/x = k

    or ny = kx

    Now let's get the value for k

    k = ny/x = (5 * 14) / 6 = 70/6 = 35/3

    now, inserting the value of k into the equation.

    n = ky/x = 35y/3x
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