An airplane flies with a constant speed of 640km/h. how far can it travel in 2 3/4 hours

1760 kilometers

step-by-step explanation:

multiply the amount of time the plane took to travel by it's speed

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

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step-by-step explanation:

answer: 1+1

step-by-step explanation: 1+1 is at least 2