Respuesta :
Answer:
James sold 300 adults tickets.
Step-by-step explanation:
Let he number of adult tickets = x
And the number of children tickets = y
Thus, we have the equations
[tex]x+y=450....(1)\\\\5x+2y=1800[/tex]
Multiply equation (1) by 2 and subtract from equation (2)
[tex]5x-2x+2y-2y=1800-900\\\\3x=900\\x=300[/tex]
Therefore, James sold 300 adults tickets.