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A cruise ship is traveling at a rate of 20 miles per hour. Use a direct variation formula to calculate the time it would take to travel 180 miles.
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A cruise ship is traveling at a rate of 20 miles per hour. Use a direct variation formula to calculate the time it would take to travel 180 miles.

User CRichter
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divide 180 and 20 and you get 9 so 9 hours 
User Skillz
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180 / 20 = 9 , so it would take 9 hours . simple . 
User Shanmu
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