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Convert the meters to miles as follows using the "slash and burn" technique. Make sure your units cancel and you're left with the correct units at the end.

I alway remember that one inch equals 2.54 cm and there are 100 cm in a meter so.....

400 meters = 40,000 cm * 1 inch / 2.54 cm * 1 foot / 12 inches * 1 miles / 5,280 feet

= .24855 miles

Now, convert 1 minute and 42 seconds into hours

1 min 42 sec = 1 and 42/60 minutes or 1.7 minutes

1.7 minutes * 1 hour/60 minutes = .028333 hours

So, you have

0.24855 miles/0.028333 hours = 8.7725 miles/hour

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13y ago
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14y ago

(400m/74s) X (3600s/1hr) X (0.000621371192 mile/meter) = 12.09 mph

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14y ago

24km/h or 14.9m/h

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Q: If you run 400 meters in 1 minute and 42 seconds how many miles per hour is that equal to?
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