If w=4x, 2x=3y, and z=y/w, then w/z = : PS Archive
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# If w=4x, 2x=3y, and z=y/w, then w/z =

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VP
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If w=4x, 2x=3y, and z=y/w, then w/z = [#permalink]

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12 Nov 2004, 10:04
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If w=4x, 2x=3y, and z=y/w, then w/z =
A. 4w
B. 20x
C. 28x
D. 24y
E. 36y

my way:

2x = 3y means y = 2/3x insert in z=y/w along with w=4x makes
z=(2/3x)/4x => z=1/6 insert in w/z along with w=4x => 4x/(1/6) => 24x ??? but it is not ??? why ???
Director
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12 Nov 2004, 10:18
24x can be further simplified using the equation 2x = 3y which will give you (24x * 3y)/2x => 36y
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12 Nov 2004, 10:40
...your ans is right, but isn`t it the same wether you represent it with x or y ?
VP
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12 Nov 2004, 10:42
oh the guest above it is me
Senior Manager
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12 Nov 2004, 10:46
E...

w=4x=4*(3/2)y
=6y.

therefore, w/z=6y*(y/w)=6w=24x=12*2x=36y.
_________________

Let's get it right!!!!

12 Nov 2004, 10:46
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