Uncle Li walks 5.6 kilometers an hour. The speed of the car is 10 times that of Uncle Li. The speed of the plane is 20 times that of the car. How many kilometers does this plane fly per hour

Uncle Li walks 5.6 kilometers an hour. The speed of the car is 10 times that of Uncle Li. The speed of the plane is 20 times that of the car. How many kilometers does this plane fly per hour


5.6x10x20 = 1120km, so the speed of the plane is 1120km per hour



A plane flew at a constant speed of 1000m in 5S, and its speed was______ M / s, combined______ The normal walking speed of junior high school students is about 10 km / h______ m/s.


Flight speed v = st = 1000m5s = 200m / S = 720km / h, walking speed is about 1.1m/s. So the answer is: 200; 720; 1.1



The speed of a fighter is 39 / min, how many kilometers does it fly in three hours


1 hour = 60 minutes
3x60x39 = 7020km
A: 7020 kilometers in 3 hours



Car a travels 10 kilometers more per hour than car B. the speed of car a is 1.2 times that of car B. how much is the speed of car B? Use the equation to solve


Let the speed of car B be X
1.2x-x=10
0.2x=10
x=50