Question 815550: [ Three times as many children as adults attended a concert on Saturday. An adult ticket cost $7 and a child ticket cost $3. The theater collected a total of $6000.00. How many people bought tickets? ]
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! c = 3a
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7a + 3c = 6000
7a + 3*3a = 6000
7a + 9a = 6000
16a = 6000
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a = 375
c = 1125
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total attendance:
a + c = 1500
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