SOLUTION: For a car moving at a constant speed the distance traveled varies directly with the time spent driving. If such a car travels 400 miles in 10 hours, how long does it take to travel
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Question 1156891: For a car moving at a constant speed the distance traveled varies directly with the time spent driving. If such a car travels 400 miles in 10 hours, how long does it take to travel 280 miles? How many hours? Answer by ikleyn(52794) (Show Source):
400 miles in 10 hours is the rate of = 40 miles per hour.
At this rate, the car will cover 280 miles in = 7 hours. ANSWER
Alternatively, you can write a proportion
=
and find the unknown time " t " from this proportion
t = = 7 hours.
Surely, you get the same answer.
