Respuesta :

maxwellekoh

Answer:

9

Step-by-step explanation:

6.4x + 2.8y = 44.4

x=3, substituting it in the expression above we have :

6.4(3) + 2.8y = 44.4

19.2 + 2.8y = 44.4

2.8y = 44.4 -19.2 = 25.2

y = 25.2 / 2.8 = 9

mhanifa

Answer:

y=9

Step-by-step explanation:

6.4x + 2.8y = 44.4

x=3, y=?

  • 6.4*3+2.8y= 44.4
  • 2.8y= 44.4- 19.2
  • 2.8y= 25.2
  • y= 25.2/2.8
  • y= 9