SOLUTION: If w, x, y, and z are four nonzero numbers, then all of the following proportions are equivalent EXCEPT (A) z/w=x/y (B) w/x=y/z (C) y/w=z/x (D) x/z=w/y (E) xy/

Question 630075: If w, x, y, and z are four nonzero numbers, then all of the following proportions are equivalent EXCEPT

(A) z/w=x/y
(B) w/x=y/z
(C) y/w=z/x
(D) x/z=w/y
(E) xy/wz=1/1
please include explanations.. thanks!
Answer by AnlytcPhil(1806) (Show Source): You can put this solution on YOUR website!
If w, x, y, and z are four nonzero numbers, then all of the following proportions are equivalent EXCEPT

 Form the equivalent cross-product equations.

The cross product equation is

� = �

(A)  the cross product equation: zy = xw

(B)  the cross product equation: wz = yx

(C)  the cross product equation: yx = zw

(D)  the cross product equation: xy = wz

(E)  the cross product equation: xy = wz

The cross product equations are all equivalent except (A)

Edwin

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