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If one kilometer is 62% of a mile, what is 21/5miles in kilometers and meters, to the nearest meter?
.
Dividing both sides by .62, 
, and
multiplying both sides by 
, 
, that is, 
,
and carrying out the division 
. One
kilometer is 1000 meters, so 
. Therefore,
2.2 miles = 3 km 548 m.