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On a hiking trip, Antoine hiked for 3 hr, traveling 5.25 mi, before he took a break for lunch. He then hiked for 3 more hours, took a rest break, and hiked for 1 more hour. After lunch, Antoine traveled twice as fast as he did before lunch. How many miles did he travel on his hiking trip? Show your work. Answer:

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jerichsen
In 1 hour, Antoine travels 1.75 mi by dividing 5.25 by 3. So, after lunch, he hiked 4 hours. 1.75 times 2 is 3.5 mi every hour after lunch. So, 3.5 times 4 is 14 mi. + 5.25 is 19.25 mi., or 19 1/4 miles.

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