Final answer:
To find out how long it will take a car to travel 200 miles with a constant speed, we can use a proportion to solve the problem.
Step-by-step explanation:
To find out how long it will take to travel 200 miles, we can use a proportion. We know that the car traveled 120 miles in 3 hours, so we can set up the proportion: 120 miles/3 hours = 200 miles/x hours. To find x, we can cross-multiply and solve for x. Cross-multiplying gives us 120x = 600, so x = 600/120 = 5. Therefore, it will take the car 5 hours to travel 200 miles with a constant speed.
Learn more about time and distance