SOLUTION: movie theater seats 100 patrons. The theater is full for the 5:00 pm Saturday movie. Adult tickets sell for $9.00 each and children’s tickets sell for $5.00 each. If the theater co

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Question 317207: movie theater seats 100 patrons. The theater is full for the 5:00 pm Saturday movie. Adult tickets sell for $9.00 each and children’s tickets sell for $5.00 each. If the theater collected $640 in ticket sales for the 5:00 pm Saturday show, how many children’s tickets were sold?
Answer by checkley77(12844)   (Show Source): You can put this solution on YOUR website!
A+C=100 A=100-C
9A+5C=640
9(100-C)+5C=640
900-9C+5C=640
-4C=640-900
-4C=-260
C=-260/-4
C=65 ANS. FOR THE NUMBER OF CHILDREN.
100-65=35 ADULT TICKETS SOLD.
PROOF:
9*35+65*5=640
315+325=640
640=640

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