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posted by tariq Thursday, May 16, 2013 at 10:33pm.
Brittany is rowing at a constant rate. She covers 20 miles in 7 hours. How many more hours will it take her to cover her 110 mile tour?
20/7 = 110/x 20x = 770 x = 38.5 hours 38.5 - 7 = 31.5 more hours
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