Posted by **Monica** on Monday, June 24, 2013 at 4:18pm.

Children's tickets to a movie cost $7. Adult tickets cost $12. If 275 tickets were sold for a total of $2490.00, how many of each type were sold?

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**Kuai **, Monday, June 24, 2013 at 4:29pm
Let adult A and children C

A + C = 275

12A + 7C = 2490

Substituting

A = 275 -C

12(275- C) + 7C = 2490

3300 -12C + 7C = 2490

3300 -5C = 2490

3300-3300 -5C = 2490 - 3300

-5C = -810

C = 162

A = 113

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**Monica**, Monday, June 24, 2013 at 4:40pm
Excellent! Thank you Kuai!

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**Kuai **, Monday, June 24, 2013 at 5:38pm
You're welcome.

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**tierra perkins**, Wednesday, March 19, 2014 at 11:41am
c 162

a 113

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