October 4th, 2016, 10:50 AM  #1 
Senior Member Joined: Feb 2016 From: seattle Posts: 377 Thanks: 10  The length of a rectangle is 3 times the width. Not sure how to set this up?
The length of a rectangle is 3 times the width. If the perimeter is to be less than or equal to 104 meters. What are the possible values for the width? Not sure I know how to set this formula up? 
October 4th, 2016, 10:54 AM  #2 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,287 Thanks: 1023 
C'mon Joe...get off yer ass! w = width w + w + 3w + 3w = 104 : let's see yer stuff! 
October 4th, 2016, 11:23 AM  #3 
Senior Member Joined: Feb 2016 From: seattle Posts: 377 Thanks: 10  
October 4th, 2016, 11:39 AM  #4 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,287 Thanks: 1023 
You got it wrong: purpose is not to make you feel bad, BUT to nudge you into showing HOW FAR YOU GOT with it; most math help site do not give solutions right off the bat, but 1st request that you show WHERE you're stuck... 
October 4th, 2016, 11:52 AM  #5  
Senior Member Joined: Feb 2016 From: seattle Posts: 377 Thanks: 10  Quote:
I just really hate that this math is so confusing to me at times. I have spent two weeks on trying just to learn one section. I thought the question was wanting it in a form I had not seen before, but now thanks to you I see that it is not.  
October 4th, 2016, 12:07 PM  #6  
Banned Camp Joined: Jun 2014 From: Earth Posts: 945 Thanks: 191  Quote:
then so can the width and the length. $\displaystyle 0 \ < \ 2(w) \ + \ 2(3w) \ \le \ 104 $ Continue. . Last edited by Math Message Board tutor; October 4th, 2016 at 12:14 PM.  
October 4th, 2016, 12:17 PM  #7  
Senior Member Joined: Feb 2016 From: seattle Posts: 377 Thanks: 10  Quote:
Thanks I was able to finally find one I could solve, it's just the "new signs" are getting me confused, and now the new ways of when to use ( ) and [] (] [)  
October 4th, 2016, 12:30 PM  #8 
Banned Camp Joined: Jun 2014 From: Earth Posts: 945 Thanks: 191  
October 4th, 2016, 12:49 PM  #9  
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,287 Thanks: 1023  Quote:
If you get off your ass(!) and draw a rectangle, label short side w (then long side = 3w), you can tell right away that perimeter is 8w...right?  
October 4th, 2016, 01:04 PM  #10 
Senior Member Joined: Feb 2016 From: seattle Posts: 377 Thanks: 10  Awe, okay so it runs in the family. I will remember that in the future if I get help from you again 

Tags 
length, rectangle, set, times, width 
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