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Dmitry [639]
3 years ago
5

a man drives for awhile at 45 mph. Realizing he is late ,he increases his speed to 60 mph and completes his 405 mile trip in 8 h

ours. How long does he drive at 45 mph?
Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
3 0
By definition, we have the following equation:
 d = v * t
 Where,
 d = Distance
 v = rate
 t = time

 The total distance traveled will be:
 45t + 60 (8 - t) = 405
 Solving for the time we have:
 t = 5 s
 Answer:
 
he drives at 45 mph for 5 s
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