What is the solution to the equation y + (6 – 4) = 8 – (4 – 1)? A. y = 1
B. y = 3
C. y = 5
D. y = 7

C

Step-by-step explanation:

If y + (6-4) is equal to 8 - (4-1), then 8 - (3)=5

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

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.