Regal theater sold 321 adult tickets and 227 children tickets.
Step-by-step explanation:
Given,
Cost of each adult ticket = $6.50
Cost of each child's ticket = $3.50
Total tickets sold = 548
Total worth of sold tickets = $2881
Let,
x represent the number of adult tickets sold
y represent the number of child tickets sold
According to given statement;
x+y=548 Eqn 1
6.50x+3.50y=2881 Eqn 2
Multiplying Eqn 1 by 6.50
[tex]6.50(x+y=548)\\6.50x+6.50y=3562\ \ \ Eqn\ 3[/tex]
Subtracting Eqn 2 from Eqn 3
[tex](6.50x+6.50y)-(6.50x-3.50y)=3562-2881\\6.50x+6.50y-6.50x-3.50y=681\\3y=681[/tex]
Dividing both sides by 3
[tex]\frac{3y}{3}=\frac{681}{3}\\y=227[/tex]
Putting y=227 in Eqn 1
[tex]x+227=548\\x=548-227\\x=321[/tex]
Regal theater sold 321 adult tickets and 227 children tickets.
Keywords: linear equation, elimination method
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