7.5 miles per hour
Assuming that the airplane maintains the same speed for the 3 hours, the formula is 478 x 3. So the answer is 1,434 miles.
There are 3600 seconds in an hour so 14 x 3600 = 50,400 mph! (Are you sure you got the question right?)
academic dishonesty
5.25
Since there are 3600 seconds in one hour, then we have: x/87 = 1/3600 cross multiply 3600x = 87 divide by 3600 to both sides x = 0.024 Thus, in one second you can travel 0.024 miles, and in 12 seconds you have traveled 0.29 miles (12 x 0.024).
7.5 miles per hour
The plane's speed is 6.136363636 mph.
31,680 feet = 6 miles.
Most commercial airplanes go about 600 miles per hour. There are planes that can travel faster with the fastest going about 2000 miles per hour.
Normal airplanes travel around 550 miles per hour, or around 240 meters per second.
100 mph
Speed of Sound = 343.14 m/s 4 miles = 6437 metres 6437/343.14 = 18.76 seconds
Air speed or ground speed?
If an object is moving 18 feet in 2 seconds, then it is moving 64,800 (18 times 60 times 60) feet in one hour. That is 12.3(64,800 divided by 5,280) miles per hour.
An aircraft that flies faster than Mach 1- or about 770 miles an hour at sea level.
The speed of sound has nothing to do with jet airplanes. About 750 mph, and it was that before jets, and even the Acropolis were built.
speed x time = distance convert miles per hour to miles per second speed = 175 miles per hour divided by 3600 seconds per hour distance = 175/3600 times 30 seconds = 1.46 miles