Question 1039458
At the movie theatre, child admission is 
$6.20
 and adult admission is 
$9.70
. On Friday, four times as many adult tickets as child tickets were sold, for a total sales of 
$1800.00
. How many child tickets were sold that day?
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4A + 1C = 4*9.70 + .620 = 45.00
1800/45 = 40 sets
--> 40 child tix