Clarissaherondale02 Clarissaherondale02 27-09-2019 Mathematics contestada 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