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12 October, 21:11

A student is running a 5-kilometer race. He runs 1 kilometer every 3 minutes. Select the function that describes his distance from the finish line after x minutes

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  1. 12 October, 22:14
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    D = distance from finish line

    D = 5 - 1/3x

    Distance from the finish line is equal to the distance of the start line from the finish line, minus one third of a km times the number of minutes hes been running.

    using given variables; D = 5 - 1/3*3

    D=5-3/3

    D=5-1

    D=4
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