Flash Posted January 21, 2011 Report Share Posted January 21, 2011 The length of a rectangle is 4 times its width. The perimeter of the rectangle is 100 yards, find its area. Quote Link to comment Share on other sites More sharing options...
Guru Posted January 21, 2011 Report Share Posted January 21, 2011 1040 Area = 400 I think Quote Link to comment Share on other sites More sharing options...
SRV Posted January 21, 2011 Report Share Posted January 21, 2011 Length: 40Width:10 Area: 400 Its probably completely wrong though lol Quote Link to comment Share on other sites More sharing options...
Guru Posted January 21, 2011 Report Share Posted January 21, 2011 Length: 40Width:10 Area: 400 Its probably completely wrong though lolWay to copy my answers. lol jk Quote Link to comment Share on other sites More sharing options...
The Truth Posted January 21, 2011 Report Share Posted January 21, 2011 lol wow guys, really? length = 20 yardswidth = 5 yards you're welcome. Quote Link to comment Share on other sites More sharing options...
Lkr Posted January 21, 2011 Report Share Posted January 21, 2011 l=4xw=x 100=(4x+4x)+(x+x)100= 8x+2x100= 10xx=10 therefore w=10l=40 area=400 Quote Link to comment Share on other sites More sharing options...
fish7718 Posted January 21, 2011 Report Share Posted January 21, 2011 Perimeter is the length of all sides added up so - X + X + 4X + 4X = 100 10X =100 x = 10 Area is base * height so X * 4X = Area 10 * 4(10) = Area 10 * 40 = Area 400 = Area is this really a college level problem? Quote Link to comment Share on other sites More sharing options...
Lkr Posted January 21, 2011 Report Share Posted January 21, 2011 lol wow guys, really? length = 20 yardswidth = 5 yards you're welcome. someone doesn't know how to find perimeter Quote Link to comment Share on other sites More sharing options...
The Truth Posted January 21, 2011 Report Share Posted January 21, 2011 oh [expletive], I thought it said the area was 100 yards, my bad lol. Quote Link to comment Share on other sites More sharing options...
AboveLegit Posted January 21, 2011 Report Share Posted January 21, 2011 Make the length 4X and the width X, then solve for the perimeter. So you have 4X+4X+X+X= 100 yards; and X=10. Which means 4X= 40 Then find the area. Guru is right. EDIT: [expletive] you lkr, posted it before me. -_- Quote Link to comment Share on other sites More sharing options...
Guru Posted January 21, 2011 Report Share Posted January 21, 2011 lol wow guys, really? length = 20 yardswidth = 5 yards you're welcome. bahahahahahahaha what college do you go to again? Quote Link to comment Share on other sites More sharing options...
SRV Posted January 21, 2011 Report Share Posted January 21, 2011 (edited) Perimeter is the length of all sides added up so - X + X + 4X + 4X = 100 10X =100 x = 10 Area is base * height so X * 4X = Area 10 * 4(10) = Area 10 * 40 = Area 400 = Area is this really a college level problem?Damn, thats a lot of work. I just sat there until i figured out what I can can multiply by 4 and would add up to 100 lol..something like that Edited January 21, 2011 by SRV Quote Link to comment Share on other sites More sharing options...
Lkr Posted January 21, 2011 Report Share Posted January 21, 2011 (edited) Damn, thats a lot of work. I just sat there until i figured out what I can can multiply by 5 and would add up to 100 lol..something like thatits much easier and quicker than guess and check lol Edited January 21, 2011 by Lkr Quote Link to comment Share on other sites More sharing options...
Guru Posted January 21, 2011 Report Share Posted January 21, 2011 Damn, thats a lot of work. I just sat there until i figured out what I can can multiply by 4 and would add up to 100 lol..something like thatHaha same. I just quickly did it in my head. Quote Link to comment Share on other sites More sharing options...
Guru Posted January 21, 2011 Report Share Posted January 21, 2011 its much easier and quicker than guess and check lolIn this case I wouldn't say quicker. But I guess it depends on the person. Quote Link to comment Share on other sites More sharing options...
SRV Posted January 21, 2011 Report Share Posted January 21, 2011 Yea....thats probably why I failed college algebra lol..I do things my own way, which tends to complicate it. Quote Link to comment Share on other sites More sharing options...
fish7718 Posted January 21, 2011 Report Share Posted January 21, 2011 Damn, thats a lot of work. I just sat there until i figured out what I can can multiply by 4 and would add up to 100 lol..something like thatYeah i figured it out a lot quicker than that, I'm just explaining all he steps because giving him just an answer doesn't help him, but showing him how to get to the answer does. Quote Link to comment Share on other sites More sharing options...
AboveLegit Posted January 21, 2011 Report Share Posted January 21, 2011 Damn, thats a lot of work. I just sat there until i figured out what I can can multiply by 4 and would add up to 100 lol..something like thatWhen in doubt, always use variables, especially when values aren't given. Quote Link to comment Share on other sites More sharing options...
NomarFachix Posted January 21, 2011 Report Share Posted January 21, 2011 Guys, please pay attention in class. You won't regret getting good grades. 2 Quote Link to comment Share on other sites More sharing options...
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