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September 20, 2014

September 20, 2014

Posted by **Bob** on Friday, February 17, 2012 at 9:02am.

- Math -
**PsyDAG**, Friday, February 17, 2012 at 9:43amLet s = # student tickets and a = # adult

s = 30 - a

2s + 5a > 90

Substitute 30-a for s in second equation and solve for a. Insert that value into the first equation and solve for s. Check by inserting both values into the second equation.

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