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Mathematics, 27.09.2019 22:30 jamesgraham577

Suppose that y varies directly with x and at the same time varies inversely with z and y=12 when x=6 and z=-2. write the equation that models the relationship.
a: y=-4x/z
b: y=4x/s
c: y=-4z/x
d: y=4z/x

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