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December 20, 2014

December 20, 2014

Posted by **Anonymous** on Sunday, November 18, 2012 at 12:48pm.

x+y = 16 (1 child + 1 Adult = 16)

6.5X + 9.5Y = 8444

6.5(16-y) + 9.5Y = 8444

What am I doing wrong?

- Algebra -
**Steve**, Sunday, November 18, 2012 at 2:35pmdo not mix up the quantity with the prices. We know there are 1000 tickets, so

x+y = 1000

now add up the prices, remembering that x and y are the number of tickets:

6.5x + 9.5y = 8444

you used x,y for prices in one place, number of tickets in the other. Using the two equations I showed above,

6.5x + 9.5(1000-x) = 8444

3x = 1056

x = 352

so, y = 1000-x = 648

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