I have a radio controled
car (scale size 1/43). This car can travel 490 ft. per minute. I would
like to know how fast that is at that scale size in miles per hour (and Kilometers
per hour)? 3rd grade 

Hi Robert, The scale is not important here. There are 5280 feet in a mile and 60 minutes in an hour so
One kilometer is approximately fiveeights of a mile so
Thus you car can travel at approximately five and a half miles per hour which is about nine kilometers per hour. Cheers, 

