The number of miles represented on a map is directly proportional to the number of centimeters measured on a map. A certain Texas map uses the scale 2 cm = 150 miles.
According to this map, how many centimeters would represent 525 miles?
The distance of a truck travels varies directly with the number of hours driven. A truck travels 268 miles in 4 hours. If the truck continues to travel at this same rate, how long will it take the truck to go 938 miles?
The amount of gas consumed by a car varies directly with the miles driven. The car traveled 180 miles and used 6 gallons of gas. If the car traveled 1,260 miles, how many gallons of gas would be used?