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You and your friend are selling tickets to a charity event. You sell 9 adult tickets and 13 student tickets for $212. Your friend sells 4 adult tickets and 15 student tickets fo…

You and your friend are selling tickets to a charity event. You sell 9 adult tickets and 13 student tickets for $212. Your friend sells 4 adult tickets and 15 student tickets fo…
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5 votes
You and your friend are selling tickets to a charity event. You sell 9 adult tickets and 13 student tickets for $212. Your friend sells 4 adult tickets and 15 student tickets for $168. What is the cost of a student ticket?

asked
User Krishnraj Rana
by
8.3k points

1 Answer

1 vote
x=adult tickets
y=student tickets

(9x+13y=212)*4= 36x+52y=848
(4X+15y=168)*9= 36x+135y=1512

subtract both equations -83y=-664
divide by -83 y=8

student tickets cost $8

answered
User Edy Bourne
by
7.6k points
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