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12 January, 21:05

The height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. When graphed, the function gives a line with a slope of - 0.6. See the figure below. Suppose that the height of the candle after 12 hours is 17.8 centimeters. What will be the height of the candle after 19 hours?

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  1. 12 January, 22:07
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    13.6 cm

    Step-by-step explanation:

    The slope of - 0.6 tells you the change in height in 7 hours will be ...

    (-0.6 cm/h) · (7 h) = - 4.2 cm

    This is added to the candle height after 12 hours, so the height after 19 hours is ...

    17.8 cm - 4.2 cm = 13.6 cm
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Home » Mathematics » The height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. When graphed, the function gives a line with a slope of - 0.6. See the figure below.
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