SOLUTION: At the city museum, child admission is $5.50 and adult admission is $8.60. On Tuesday, 139 tickets were sold for a total sales of $1028.00. How many adult tickets were sold that da

Question 1008292: At the city museum, child admission is $5.50 and adult admission is $8.60. On Tuesday, 139 tickets were sold for a total sales of $1028.00. How many adult tickets were sold that day?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
At the city museum, child admission is $5.50 and adult admission is $8.60. On Tuesday, 139 tickets were sold for a total sales of $1028.00. How many adult tickets were sold that day?
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Quantity Equation:: c + a = 139 tickets
Value Equation:: 5.5c+8.6a = 1028
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Modify for elimination::
55c + 55a = 55*139
55c + 86a = 10280
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Subtract and solve for "a"::
31a = 2635
a = 85 (# of adult tickets sold)
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Cheers,
Stan H.
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