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Mathematics, 13.11.2019 17:31 damari9288

Dennis went cross country skiing for 6 hours on saturday. he skied 20 miles uphill and then 20 miles downhill, returning to his starting point. his uphill speed was 5 mph slower than his downhill speed. what was dennis's speed going uphill and his speed going downhill?

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Dennis went cross country skiing for 6 hours on saturday. he skied 20 miles uphill and then 20 miles...

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