Two equations are given below
a - 3b=4
a= b - 2

what is the solution to the set of equations in the form (a, b)?

(-5,-3)

Step-by-step explanation:

In this case to find the solution you could use substitution. This way you can solve without changing the equation over again.

(b - 2) - 3b = 4

b - 2 - 3b = 4

-2b - 2 = 4

-2b = 6

b =  -3

Plug back in to find value a

a = (-3) - 2

a = -5

Check your answer before submitting

(-5) - 3(-3) = 4

-5 + 9 = 4

4 = 4

Hope this helps

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

there will be 35 boys in each team. : )