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9 votes
9 votes
A race car driver won a 700 mile race with a speed of 192.9 miles per hour. Find the drivers time

User Demasterpl
by
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1 Answer

20 votes
20 votes

9514 1404 393

Answer:

3:37:43.8

Explanation:

The relevant relation is ...

time = distance / speed

time = (700 mi)/(192.9 mi/h) ≈ 3.628823 h

≈ 3:37:43.8 . . . . HH:MM:SS

The driver's time was about 3 hours, 37 minutes, 43.8 seconds.

_____

Additional comment

Multiply 60 minutes by the fraction of hours to get minutes.

60×0.628823 ≈ 37.729393 . . . minutes

Multiply 60 seconds by the fraction of minutes to get seconds.

60×0.729393 ≈ 43.76 . . . seconds

Intermediate values in the calculation should not be rounded. Full calculator precision should be maintained until the final answer.

User Arslan Ali
by
2.9k points
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