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January 27, 2015

January 27, 2015

Posted by **Milen** on Tuesday, November 6, 2012 at 4:53am.

- Math Statistics -
**Tarefa**, Tuesday, November 6, 2012 at 6:00amShow that 2Radical2an irrational number

- Math Statistics -
**Reiny**, Tuesday, November 6, 2012 at 8:10amYour last 4 or 5 questions have all been the same type.

I will do this one and let you do the others in the same way

The average for the 5 boys is 68, so their total heights is 5(68) = 340

Let George's height be x

(x + 340)/6 = 67

x+340 = 402

x = 62

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