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16 December, 19:11

The distance of a train from a station, varies directly with time, t. If d = 300 miles when t = 4 hours, find d when t = 6.

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  1. 16 December, 21:11
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    d = 450

    Step-by-step explanation:

    Turn this problem into a proportion. 300/4 = x/6

    Cross multiply. (300) * (6) = x * (4)

    = 1800=4x

    Divide 4 from both sides

    x = 450
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