How long (in minutes) will a 400-mile road trip take at 70 miles per hour? Round your answer to the nearest minute.

Question

1 hour = 60 minutes

Answer 1

d = r · t

d/r = t

 

400 mi / 70 mph = 5.7142 hours

 

0.7142 hours ≈ 60(0.7142) ≈ 43 minutes

 

The trip takes 5 hours and 43 minutes.