SOLUTION: For a Saturday matinee, adult tickets cost $8.50 and kids under 12 pay only $7.00. If 90 tickets are sold for a total of $675, how many of the tickets were adult tickets and how ma

Algebra ->  College  -> Linear Algebra -> SOLUTION: For a Saturday matinee, adult tickets cost $8.50 and kids under 12 pay only $7.00. If 90 tickets are sold for a total of $675, how many of the tickets were adult tickets and how ma      Log On


   

Question 1039155: For a Saturday matinee, adult tickets cost $8.50 and kids under 12 pay only $7.00. If 90 tickets are sold for a total of $675, how many of the tickets were adult tickets and how many were sold to kids under 12?
They sold___ adult tickets and ___ kid tickets?

Answer by jorel555(1290) About Me  (Show Source):
You can put this solution on YOUR website!
Let n be adult tickets sold. Then
850n+700(90-n)=67500
850n+63000-700n=67500
150n=4500
n=30
They sold 30 adult tickets and 60 kid tickets!!!!!!!!!!!!