Use substitution to solve the system of linear equations. in your final answer, include all of your work. {y = -3x + 4
{x + 1/3y = 4/3

14 points ! it would be very appreciated!

Good evening ,

Step-by-step explanation:

y = -3x + 4   (1)

x + 1/3y = 4/3   (2)

(2) ⇔ (1/3)y=x-4/3 ⇔ y=3x-4 then the system can be written:

y = -3x + 4   (1)

y = 3x-4   (2)

In the second equation if we substitute y by its expression “-3x+4” we get

3x-4 = -3x+4 ⇔ 6x = 8 ⇔ x = 8/6 = 4/3

(1) y = -3x+4 = -3(4/3)+4 = 0

then (x,y) = (4/3 , 0).

:)

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

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol