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Mathematics, 26.01.2020 03:31 leem6

Two bikers, jose and luis, start at the same point at the same time and travel in opposite directions. jose's average speed is 9 miles per hour more than that of luis, and after 3 hours the bikers are 81 miles apart. find the average speed of each biker.

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Two bikers, jose and luis, start at the same point at the same time and travel in opposite direction...
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