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July 22, 2014

July 22, 2014

Posted by **Anonymous** on Friday, February 17, 2012 at 12:11pm.

- algebra -
**Steve**, Friday, February 17, 2012 at 2:22pmA+B+C = 180 for a triangle ABC

B = 5A

C = 4A-15

A + 5A + 4A - 15 = 180

10A = 195

A = 19.5

B = 97.5

C = 63

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