Ben's potato gun can launch a potato 6 football fields. If a football field is 200 yards long and Ben's dog can run 400 feet/minute, how many minutes will it take his dog to fetch a potato he launches?
First find the total distance the potato flies in yards: 200 yards/field * 6 fields = 1200 yards
Then multiply that number by the number of feet per yard to convert it to feet: 1200 yards * 3 feet/yard = <<1200*3=3600>>3600 feet
Then divide that number by the dog's speed to find the number of minutes it has to run to fetch the potato: 3600 feet / 400 feet/minute = <<3600/400=9>>9 minutes
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