My Math Forum The length of a rectangle is 3 times the width. Not sure how to set this up?

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October 4th, 2016, 11:50 AM   #1
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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?
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 October 4th, 2016, 11:54 AM #2 Math Team   Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 13,943 Thanks: 985 C'mon Joe...get off yer ass! w = width w + w + 3w + 3w = 104 : let's see yer stuff!
October 4th, 2016, 12:23 PM   #3
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Quote:
 Originally Posted by Denis C'mon Joe...get off yer ass! w = width w + w + 3w + 3w = 104 : let's see yer stuff!
Thanks for your help, but no need to make me feel worse than I do already having to need help or even ask.

 October 4th, 2016, 12:39 PM #4 Math Team   Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 13,943 Thanks: 985 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, 12:52 PM   #5
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Quote:
 Originally Posted by Denis 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...
That I get, it was the telling me to get off my ass is the part I took as you being rude, but guess that was a nice way of talking for you

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, 01:07 PM   #6
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Quote:
 Originally Posted by GIjoefan1976 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?
Quote:
 Originally Posted by Denis C'mon Joe...get off yer ass! w = width w + w + 3w + 3w = 104
The content in the quote box immediately above is a good hint. The perimeter can vary,
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 01:14 PM.

October 4th, 2016, 01:17 PM   #7
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Quote:
 Originally Posted by Math Message Board tutor This is a good hint. The perimeter can vary, then so can the width and the length. $\displaystyle 0 \ < \ 2(w) \ + \ 2(3w) \ \le \ 104$ Continue. .

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, 01:30 PM   #8
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Quote:
 Originally Posted by GIjoefan1976 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 [] (] [)

$\displaystyle 0 \ < \ 2*w \ + \ 2*3w \ \le \ 104$

October 4th, 2016, 01:49 PM   #9
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 Originally Posted by GIjoefan1976 That I get, it was the telling me to get off my ass is the part I took as you being rude, but guess that was a nice way of talking for you
Geeeshhhh Joe, my own mother used to tell me that!

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, 02:04 PM   #10
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Quote:
 Originally Posted by Denis Geeeshhhh Joe, my own mother used to tell me that! 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?
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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