Gretchen and henrik are meeting at a park. gretchen lives 2.4 miles away from the park and bikes at a constant rate of 12 miles per hour. henrik lives 8.4 miles away from the park and he drives at a constant rate of 36 miles. per hour. if they both head out at the same time, who will arrive first and by how many minutes?

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Mathematics

15 August, 22:16

Gretchen and henrik are meeting at a park. gretchen lives 2.4 miles away from the park and bikes at a constant rate of 12 miles per hour. henrik lives 8.4 miles away from the park and he drives at a constant rate of 36 miles. per hour. if they both head out at the same time, who will arrive first and by how many minutes?

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Kobe Khan · Answer 1

60 minutes per hour / 12 miles per hour = 5 minutes per mile

2.4 miles * 5 = 12 minutes for Gretchen

60 / 36 = 1.67 minutes per mile

8.4 * 1.67 = 14 minutes for Henrik

Gretchen arrives first by 2 minutes

Maxwell Harrison · Answer 2

1) t=S/U=2.4/12=0.2

2) t=S/U=8.4/36=0,23

3) 0.23-0.2=0.03