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Consider the linear system below:
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Pedro and Maria are playing a race. Pedro ran for 15 minutes and Maria ran for 1/4 of an hour. Who ran for a longer time? Justify your answer. In addition, they measured the distance they ran with a tape measure. If Pedro ran 300 meters and Maria ran 0.3 kilometers, who ran a longer distance? Explain your answer using what you know about units of length and time measurement.

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