math
posted by john .
30% of the tickets sold by a movie theater for the Friday night show were children's tickets at $4 each. The rest of the tickets were sold at the full price of $8.50. The movie theater collected $360 just for the children's tickets. How many tickets did they sell in all?

x total tickets sold
.3x tickets sold as childrens
.3x(4) = 360
1.2x = 360
x =300