# question in algebraic fractions

• Jan 14th 2009, 08:38 AM
eclipse
question in algebraic fractions
I do my school through a program on the computer. (I took a screenshot of my problem below) It's just an example problem, so your not cheating for me haha. NOTE! The question that this is a solution to is "Find the two consecutive odd numbers such that the sum of two-sevenths of the smaller and one-third of the larger is equal to thirty-one. I'm pretty sure I understand everything but what I have circled (in the picture below). Where did 31 come from?

http://www.mathhelpforum.com/math-he...1&d=1231954351
• Jan 14th 2009, 08:49 AM
Aryth
Quote:

Originally Posted by eclipse
I do my school through a program on the computer. (I took a screenshot of my problem below) It's just an example problem, so your not cheating for me haha. NOTE! The question that this is a solution to is "Find the two consecutive odd numbers such that the sum of two-sevenths of the smaller and one-third of the larger is equal to $\displaystyle \color{red}thirty-one$. I'm pretty sure I understand everything but what I have circled (in the picture below). Where did 31 come from?

What is highlighted in red is where your 31 came from. $\displaystyle \frac{2}{7}$ of one number plus $\displaystyle \frac{1}{3}$ of the larger number is equal to 31. So that equality must be established before moving on, which is what your solution is doing.
• Jan 14th 2009, 08:49 AM
ronaldo_07
The 31 is in the origional question "Find the two consecutive odd numbers such that the sum of two-sevenths of the smaller and one-third of the larger is equal to thirty-one."
• Jan 14th 2009, 08:55 AM
eclipse
ha... I feel stupid now (Worried) oh well. Maybe I should get more sleep.