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January 25, 2015

January 25, 2015

Posted by **Deb** on Monday, April 29, 2013 at 8:04pm.

Find the number of each type sold.

Thanks for your help.

- algebra(help) -
**Reiny**, Monday, April 29, 2013 at 9:23pmstudent tickets ---- x

adult tickets ------- x+100

children tickets ---- 2000 -x - (x+100) = 1900-2x

5(1900-2x) + 10x + 12(x+100) = 19700

9500 - 10x + 10x + 12x + 1200 = 19700

12x = 9000

x =**750 student tickets**

x+100 = 850 adult tickets

leaving 400 children tickets

check:

5(400) + 10(750) + 12(850) = 19700

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