2. Select all the equations that have the same solution as the equation 3x - 12 = 24. A. 15x - 60 = 120
B. 3x = 12
C. 3x = 36
D. x - 4 = 8
E. 12x - 12 = 24

a and b

Step-by-step explanation:

15x-60=120

15x-60-60=120-60

15x=60

15x/15=60/15

x=4

3x=12

3x/3=12/3

x=4

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

could

step-by-step explanation:

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