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Mathematics, 13.11.2019 03:31 eraines1714

Yes when cross-country skiing for 6 hours on saturday he ski 20 miles up hill and then 20 miles back down hero returning to his starting point his appeal speed was 5 miles per hour slower then in his downhill speed what was dinass be going up eo and his be going downhill

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Yes when cross-country skiing for 6 hours on saturday he ski 20 miles up hill and then 20 miles back...
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