Question 1030617
Call the numbers of adult and kids' tickets, a and k.
Then we write
a + k = 110  and the value equation
5.5a + 3k = 480
Now let's multiply the top one by 3 and subtract...we get
5.5a + 3k = 480
-(3a + 3k = 330)
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2.5a = 150
a = 60 adult tix which means there were
k = 50 kid's tix