Answered

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A motorboat is still install water travels at a rate of 45 miles per hour The current today is travelling at a rate of 10 miles per hour if it took an extra hour to travel upstream how far was the trip one way

Sagot :

sqdancefan

9514 1404 393

Answer:

  157.5 miles

Step-by-step explanation:

We assume the "extra hour" is in relation to the travel time it would take if there were no current.

The relation between time, speed, and distance is ...

  time = distance/speed

Then the difference in travel times for the distance d is ...

  d/35 -d/45 =1

  9d -7d = 315 . . . . . multiply by 315 (the least common denominator)

  d = 315/2 = 157.5 . . . . divide by 2

The trip was 157.5 miles one way.

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