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5 June, 13:29

Julissa is running a 10-kilometer race at a constant pace. After running for 18 minutes, she completes 2 kilometers. After running for 54 minutes, she completes 6 kilometers. Her trainer writes an equation letting t, the time in minutes, represent the independent variable and k, the number of kilometers, represent the dependent variable. Write the equation.

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  1. 5 June, 16:41
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    First, we need her speed as it will serve as the slope of the equation.

    Distance = 2 km

    time = 18 min

    Speed = 1/9 km/min

    k = (1/9) t

    Where k is the distance in km and t is the time in minutes.
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