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21 November, 10:32

Linda and Colleen both leave the library at the same time, but in opposite direction. If Colleen travels 8mph faster than Linda and after 8 hours they are 176 miles apart, how fast is each traveling?

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  1. 21 November, 12:36
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    X - Linda's speed

    (x+8) - Colleen's speed

    8x - Linda's distance for 8 h

    8 (x+8) = 8x+64 - Colleen's distance for 8 h

    8x + 8x + 64 = 176 - distance between Colleen and Linda after 8 h

    8x + 8x + 64 = 176

    16x + 64 = 176

    16x = 176 - 64

    16x = 112

    x = 7 mph Linda's speed

    x+8 = 7+8 = 15 mph Colleen's speed
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