<PRE><B>Question 296151</B>
You sell tickets for admission to your school play and collect a total of $104. Admission prices are $6 for adults and $4 for children. You sold 21 tickets. How many adult tickets and how many children tickets did you sell? 

let the number of adult tickets sold be x

number of children tickest = 21-x

6x+4(21-x)= 104

6x+84-4x=104

2x= 20

x=20/2

x=10  the number of adult tickets

21-10 = 11 will be the number of children tickets

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