73.85 kilometers per hour.
If a car travels for 20 minutes at a speed of 60 miles per hour the car travels 20 miles.
90 kilometres per hour.
69
80 km per hour
It travels 288 miles in 4 hours 30 minutes at that speed.
32 miles per hour. The speed at which the car is travelling is the distance in miles that the car travels per hour. If the car travels 16 miles in 30 minutes it should then travel twice as far in one hour, since one hour is twice as long as 30 minutes (half an hour). So, the car travels 2 * 16 miles per hour, which equals 32 miles per hour.
The car's average speed is 56 miles per hour.
.66667 miles per hour
The faster car travels at an average speed of 48 miles per hour, while the slower car travels at 36 miles per hour. To find the difference in their speeds, subtract the slower car's speed from the faster car's speed: 48 - 36 = 12 miles per hour. Therefore, the faster car travels 12 miles per hour more than the slower car.
247
224 miles
Simple Equation Speed = Distance / Time as you want it in a speed distance per minute, the time in this equation is in minutes. it will result in a unit of miles per minute. 70 divided by 80 = 0.875 so the average speed is 0.875 Miles per Minute