SOLUTION: Adult tickets for a play cost $4 and child tickets cost $1. If there were 23 people at a performance and the theater collected $80 from ticket sales, how many children attended th
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Question 89429: Adult tickets for a play cost $4 and child tickets cost $1. If there were 23 people at a performance and the theater collected $80 from ticket sales, how many children attended the play? Answer by checkley75(3666) (Show Source):
You can put this solution on YOUR website! A+C=23 A=23-C
4A+1C=80 NOW SUBSTITUTE (23-C) FOR A & SOLVE FOR C
4(23-C)+1C=80
92-4C+1C=80
-3C=80-92
-3C=-12
C=-12/-3
C=4 NUMBER OF CHILDREN TICKETS.
23-4=19 ADULT TICKETS.
PROOF
4*19+4*1=80
76+4=80
80=80
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