Y=2x-2 and 4x+2y=12. step by step plz (solution is supposed to be in cordinates)

(2,2)

Step-by-step explanation:

y=2x-2 and 4x+2y=12

Since the first equation is solved for y, we can substitute it into the second equation

4x +2(2x-2) =12

Then we distribute  the 2

4x+4x -4 =12

Combine like terms

8x-4 =12

Add 4 to each side

8x -4+4 =12 +4

8x = 16

Divide by 8

8x/8 = 16/8

x = 2

Now that we have x, we need to find y

y =2x-2

Substituting x=2

y =2(2)-2

y = 4-2

y=2

(2,2)

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m