Answered


Solve the equations x + y = 300 and 12x + 15y
4,140

Answer :

BELLEZA49GO

Answer:

x=120

y=180

Step-by-step explanation:

x=300-y

12x+15y=4140

12(300-y)+15=4140

y=180

substitute

x=300-180

x=120

Go Question: Other Questions