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6 December, 13:38

Two cities are 2310 miles apart. a plane leaves one of? them, traveling towards the other at an average speed of 380 miles per hour. at the same time a plane leaves the? other, traveling towards the? first, at an average speed of 390 miles per hour. how long will it take them to? meet?

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  1. 6 December, 14:03
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    let H = hours

    380H + 390H = 2310

    770H=2310

    2310/770 = 3

    H=3 hours
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