SOLUTION: Two types of tickets are sold for a concert. Adult tickets cost $10 each, while student tickets each cost $7. A total of 140 tickets are sold, bringing in a total of $1,298. How ma
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Question 662495: Two types of tickets are sold for a concert. Adult tickets cost $10 each, while student tickets each cost $7. A total of 140 tickets are sold, bringing in a total of $1,298. How many student tickets were sold?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Two types of tickets are sold for a concert. Adult tickets cost $10 each, while student tickets each cost $7. A total of 140 tickets are sold, bringing in a total of $1,298. How many student tickets were sold?
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Equtions:
a + s = 140 tickets
10a+7s = 1298 dollars
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Modify:
10a + 10s = 1400
10z + 7s = 1298
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Substract and solve for "s":
3s = 102
s = 34 (# of student tickets sold)
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Cheers,
Stan H.
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