There are 25 people in a room; 5 are men, 8 are women, and the remainder are children. Express the number of children in the group as a fraction.

12/15

Step-by-step explanation:

so if 5 are men then 5/25= 1/5

women= 8/25

add fractions 8/25 + 5/25= 13/25

total is 25 people so 25-13= 12

12/25=children

(check just in case i'm wrong)

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

b. x + 1

step-by-step explanation:

i'am smart