Cubic Feet. Math Help Please. - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
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post #1 of 24 (permalink) Old 10-16-2006, 05:39 PM Thread Starter
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Cubic Feet. Math Help Please.

I need to build my sub box to fit in the back of my trunk. The specs say 1.7 cubic feet is ideal. I just need somebody to figure a box design using inches with it not exceeding 17' inches wide, 14' long and 13' high. So basically width is all there is to change. How wide should each box be? This is for 2 twelves, 1 box each then Im going to attach the boxes together. Kinda Like Dodgeyaussie's was If you remember how he did it except my subs are going to fire into the cab.
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post #2 of 24 (permalink) Old 10-16-2006, 05:43 PM
 
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These people might be able to help...
https://www.dodgeintrepid.net/forums/...splay.php?f=31

And this is a Fantastic!! converter!!
http://joshmadison.net/software/convert/

Last edited by alarkyokie; 10-16-2006 at 05:48 PM.
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post #3 of 24 (permalink) Old 10-16-2006, 05:49 PM
 
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And you thought all of that math you had in junior high school would never be of any use.......
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post #4 of 24 (permalink) Old 10-16-2006, 05:50 PM Thread Starter
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Oooooooookkkkaaaaayyyyyy. My Bad , I guess I shoulda put it in the audio section but I assumed it to be a mathish general question.
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post #5 of 24 (permalink) Old 10-16-2006, 05:53 PM
 
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But check out the convertor --comes in handy!
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post #6 of 24 (permalink) Old 10-16-2006, 05:55 PM Thread Starter
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I looked at it, didnt find cubic feet but damn that thing has about everything else. Thanks for the tip, it will come in handy later for my math homeowork for sure.
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post #7 of 24 (permalink) Old 10-16-2006, 05:56 PM Thread Starter
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nm I found Cubic Feet It was under Volume (Duh *Smacks Myself)
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post #8 of 24 (permalink) Old 10-16-2006, 06:31 PM
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you plan on constructing these yourself?
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post #9 of 24 (permalink) Old 10-16-2006, 06:57 PM Thread Starter
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Yes. I still am retarded and cant figure out the dimensions Ill need though. I can get some of it through the converter but I just dont know what to do with the numbers.
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post #10 of 24 (permalink) Old 10-16-2006, 07:08 PM
 
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1.7 cubic feet is 2937.6 cu inches. Divide by length 14", height 13", and you get width of 16.14"
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post #11 of 24 (permalink) Old 10-16-2006, 07:13 PM
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we have a genius!!!!!!!!!
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post #12 of 24 (permalink) Old 10-16-2006, 07:17 PM
 
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Quote:
Originally Posted by Imadreadhead
we have a genius!!!!!!!!!
lol

I wish
Calc II is driving me nuts!
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post #13 of 24 (permalink) Old 10-16-2006, 07:19 PM
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easy conversions: 12 inches in a foot. for cubic feet you need to go this route:

you can only change the width, so, for out purposes we will call width W. Hell, call it what you want, and after you get done talking to it, plug it into this equation: W*14inches*13inches = 1.7 ft^3.

whoa. you got inches in that equation. we need it all in cubic feet. No problem, up at the top we have that conversion figure. so 14inches * 1ft / 12 inches = 14/12 feet or 1.1667 feet. 13 inches * 1ft/12 inches = 1.0833.

so, we have now W*1.667*1.0833 = 1.7ft^3. simplifies that to 1.2639*w = 1.7

so W = 1.7 / 1.2639 which is 1.3451ft

wow. not too shabby, now all you need is that in inches and we are good to go

we have 12 inches / 1ft * 1.3451 ft the ft cancell out leaving inches, and that gives us 16.1407 inches.

and that I believe is within your specs.

Happy building

AJ
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post #14 of 24 (permalink) Old 10-16-2006, 09:08 PM Thread Starter
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Man I Love This Sight!!!! You guys Are Awesome. Thanks For The Help. Anybody ever need help with any English Related Questions Feel Free to ask!! Haha
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post #15 of 24 (permalink) Old 10-16-2006, 09:23 PM
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Quote:
Originally Posted by Vertigo_AK47
Man I Love This Sight!!!! You guys Are Awesome. Thanks For The Help. Anybody ever need help with any English Related Questions Feel Free to ask!! Haha

You have to consider the with of the plywood in your calculation too.
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