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denis-greek [22]
4 years ago
6

In 1911, the first year of the Indianapolis 500 auto race, the winning car had an average speed of 109.416 feet per second. What

is that speed in miles per hour?
Mathematics
1 answer:
Elena-2011 [213]4 years ago
6 0

Answer:

74.6018 Miles per hour

Step-by-step explanation:

Step 1: How many seconds are in an hour? There are 60 seconds in a minute and 60 minutes in an hour, so there are 60*60 = 3600 seconds in an hour.

Step 2: How many feet are in a mile? There are 5280 feet in a mile.

Step 3: To convert feet per second to miles per hour, first multiply by 3600, then divide by 5280. The fraction 3600/5280 reduces to 15/22.

To convert feet per second to miles per hour, multiply by 15/22.

So: 109.416 feet/second * (15/22) = 74.6018 miles/hour

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