There are 12 colored pencils in a jar, and 3 of them are red. What percentage of colored pencils are red

25% are red

Step-by-step explanation:

The fraction of the pencils that are red is

3/12 = 1/4

Changing to decimal form

.25

Multiply by 100 to get a percent

.25 * 100

25%

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

step-by-step explanation: