Which ordered pair is a solution to the system of equations? note: use the substitution method. {x=1/4y+2 {−4x+3y=4 (7/2, 6 ) (−1/4, 1 ) (−11/2, −26/3 ) (5/4, 3 )

x=1/4y+2

−4x+3y=4> substitution method

 -4(1/4y+2)+3y=4

-y-8+3y=4- > 2y=4+8- >y=6

x=1/4y+2- > ¼(6)+2=7/2

 the answer is (7/2,6)

the thermometer is precise but not accurate

step-by-step explanation:

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