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12 December, 05:31

At the end of a snow storm, Mason saw there was a lot of snow on his front lawn. The temperature increased and the snow began to melt at a steady rate. There was a depth of 10 inches of snow on the lawn when the storm ended and then it started melting at a rate of 0.5 inches per hour. Write an equation for the function S (t), representing the depth of snow on Mason's lawn, in inches, t hours after the snow stopped falling.

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  1. 12 December, 05:58
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    S (t) = 10 - 0.5t

    Step-by-step explanation:

    initial depth of snow = 10 inches

    melting rate = 0.5 inches per hour

    it means that, in one hour snow depth will decrease by 0.5 inches

    thus, in t hours snow depth will decrease by 0.5*t = 0.5t inches

    Thus, depth of snow after t hours can be calculated by

    we will take initial depth of snow and them subtract the depth of snow which melted in t hours.

    we are subtracting as snow is melting and will thus decrease the depth of snow

    depth of snow after t hours can = initial depth of snow - decrease of the depth of snow after snow melts for t hours

    depth of snow after t hours can = 10 inches - 0.5t inches

    = (10 - 0.5t) inches

    Thus, S (t), representing the depth of snow on Mason's lawn, in inches, t hours after the snow stopped falling is S (t) = 10 - 0.5t
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