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September 20, 2014

September 20, 2014

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

- math -
**Kuai**, Monday, June 24, 2013 at 4:29pmLet 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

- math -
**Monica**, Monday, June 24, 2013 at 4:40pmExcellent! Thank you Kuai!

- math -
**Kuai**, Monday, June 24, 2013 at 5:38pmYou're welcome.

- math -
**tierra perkins**, Wednesday, March 19, 2014 at 11:41amc 162

a 113

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