Mathematics, 15.12.2019 23:31, marissasusievalles

Tyler and sophia went on a 20-kilometer bike ride that lasted 3 hours. their walking speed was 4-kilometers per hour. their riding speed was 12-kilometers per hour. how much time did they spend walking?

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Tyler and sophia went on a 20-kilometer bike ride that lasted 3 hours. their walking speed was 4-kil...