For a car moving at a constant speed, the distance traveled varies directly with the time spent driving. If such a car travels 325 miles in 5 hours, how many miles does it travel in 9 hours?
To solve this problem, we can set up a proportion using the information given.
Let x be the number of miles the car travels in 9 hours.
Since the distance traveled varies directly with time, we can write the proportion:
325 miles / 5 hours = x miles / 9 hours
To solve for x, we can cross multiply:
5 * x = 325 * 9
5x = 2925
Divide both sides of the equation by 5 to solve for x:
x = 2925 / 5
x = 585
Therefore, the car travels 585 miles in 9 hours.