SOLUTION: Mr. Avila took his four children to the trade exhibit.The total cost of their admission tickets was $135.Mr. and Mrs. Santos and their six children had to pay $220.What was the cos

Question 646646: Mr. Avila took his four children to the trade exhibit.The total cost of their admission tickets was $135.Mr. and Mrs. Santos and their six children had to pay $220.What was the cost of an adult ticket and that of the child's ticket?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the cost of an adult ticket
Let = the cost of a child's ticket
given:
(1)
(2)
--------------------
Divide both sides of (2) by
(2)
Subtract (2) from (1)
(1)
(2)

plug this result back into either (1) or (2)
(2)
(2)
(2)
An adult ticket is $35 and a child's ticket is $25
check:
(1)
(1)
(1)
(1)
OK

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