
Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion 
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April 17th, 2017, 10:48 AM  #1 
Newbie Joined: Apr 2017 From: Wyoming Posts: 2 Thanks: 0  I Don't Get this Addition and Divison Problem
I was looking at a sample quiz with an answer key and I really don't get a pretty basic problem. 6 + 8  2 According to the answer key the answer is 7. Please explain the problem to this simpleton. Thank you. 
April 17th, 2017, 11:06 AM  #2 
Senior Member Joined: Aug 2012 Posts: 1,780 Thanks: 482 
The absolute value of a number $x$ is $ x = \begin{cases} ~~~x ~~\text{if} ~~x \geq 0 \\ x ~~\text{if} ~~ x < 0 \end{cases} $ So: ${6} = 6$ $8 = 8$ ${2} = 2$ Then the numerator becomes $6 + 8 = 14$, and the denominator is $2$. So the answer is $14 / 2 = 7$. Last edited by Maschke; April 17th, 2017 at 11:16 AM. 
April 17th, 2017, 12:30 PM  #3 
Newbie Joined: Apr 2017 From: Wyoming Posts: 2 Thanks: 0 
Absolute Value, of course! I could not for the life of me remember what the lines next to the numbers meant. Thanks. 
April 17th, 2017, 12:32 PM  #4 
Senior Member Joined: Aug 2012 Posts: 1,780 Thanks: 482  

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