w=x
l=2x
2w+2l=P
2x+2(2x)=2
2x+4x=2
6x=2
x= 1/3
width is 1/3 and length is 2/3
2006-11-28 11:56:13
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answer #1
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answered by 7
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The width (w) of the rectangle is x, so the length of the rectangle (l) is equal to 2x. The perimeter (P) is
P= 2(2x) + 2(x)
Simplify to P=6x. P=2cm, so
6x = 2cm
x=1/3 cm
Plug back in, and
width=1/3 cm
length=2/3cm
2006-11-28 11:58:18
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answer #2
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answered by Bob 1
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The length is twice the width.
That means that L = 2W.
The perimeter of the rectangle = 2L + 2W = 2(2W) + 2W
= 4W + 2W
= 6W
6W = 2
W = 2/6 = 1/3.
The width is 1/3 cm. The length is twice that, or 2/3 cm.
Check the answer:
2*(1/3) + 2*(2/3) = 2/3 + 4/3 = 6/3 = 2
It works!
2006-11-28 11:56:49
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answer #3
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answered by hokiejthweatt 3
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Let W be the width of the rectangle, and let L be the length.
then L = 2 x W
The Perimeter P of the rectangle is:
P = L + L + W + W
P = 2L + 2W
but L = 2W so P = 2(2W) + 2W = 6W
P = 6W = 2 cm.
this means that W = (2/6)cm = (1/3)cm.
and L = 2W = (2/3) cm.
2006-11-28 11:59:26
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answer #4
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answered by oddy411 1
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The formula for perimetr is
Let
2w =the length Twice the width
w = the width
2 = the Perimeter
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Solving for w
P = 2L + 2W
2 = 2(2w) + 2w
2 = 4 w + 2w
2 = 6w
2 / 6 = 6w/6
1/3 = w
The answer is w = 1/3
Insert The w value into the equation
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solving for L
P = 2L + 2W
2 = 2L + 2(1/3)
2 = 2L + 2/3
2 - 2/3 = 2L + 2/3 - 2/3
2 - 2/3 = 2L
3(2) - 3/2/3) = 3(2L)
6 - 2 = 6L
4 = 6L
4/6 = 6L/6
2/3 = L
The answer is L = 2/3
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2006-11-28 12:43:47
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answer #5
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answered by SAMUEL D 7
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if 2l+2w=2 is for perimeter and l=2w this is how it works because u want to find where they intersect:
2l+2w=2
l=2w You write the two"equations"
2(2w)+2w=2 you substitute the 2w in for l
4w+2w=2 you multiply the 2 by the 2w
6w=2
w=1/3 u divide by 6 so the width is 1/3 cm
l=2w the original one
l=2(1/3) put in w value
l=2/3
see, if u check it u see that 2/3=1/3*2 and that 2/3*2+1/3*2=2
4/3+2/3=6/3=2
2006-11-28 12:07:07
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answer #6
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answered by alekhya_datla 2
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Hmm.... seems pretty easy to me.
perimeter = 2x length + 2x width
width = x
length = 2x
2x + 2*2x = 2cm
2x + 4x = 2cm
6x = 2cm
x = 2/6cm or 1/3cm
width = 1/3cm, length = 2/3cm
2006-11-28 12:04:07
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answer #7
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answered by Anonymous
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l = 2w
2 = 2(2w + w)
1 = 3w
w = (1/3)
ANS :
Width = (1/3)cm
Length = (2/3)cm
2006-11-28 13:02:57
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answer #8
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answered by Sherman81 6
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l=2w
2l+2w=2cm
Substitute l for 2w
2l+l=2
3l=2
l=2/3
since l=2w, w=1/3
2006-11-28 11:57:10
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answer #9
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answered by af12af3af 2
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