SOLUTION: At the movie theatre, child admission is $6.20 and adult admission is $9.30 On Monday, 153 tickets were sold for a total sales of $1125.30 . How many child tickets were sold that d

Question 365388: At the movie theatre, child admission is $6.20 and adult admission is $9.30 On Monday, 153 tickets were sold for a total sales of $1125.30 . How many child tickets were sold that day?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
child admission is $6.20 : x numbers
adult admission is $9.30 : y numbers
153 tickets were sold
sales of $1125.30 .
x+y = 153.........................1
6.20x+9.30y= 1125.30..............2
..
multiply equation 1 by -6.20
-6.20x-6.20y=-948.6
add this to equation 2
6.20x-6.20x +9.30y-6.20y=1125.30-948.60
3.10y= 176.70
/3.10
y=176.70/3.10
y = 57 number of adult tickets
153-57=96 child tickets
...
m.ananth@hotmail.ca
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