Question

Suppose that y varies jointly with w and x and inversely with z and when w = 15, x = 20, and z = 5, y = 420. Write the equation that models the relationship.(1 point)%0D%0AResponses%0D%0A%0D%0Ay=6kwz%0D%0A%0D%0A=%0D%0A6%0D%0A%0D%0A%0D%0A%0D%0Ay is equal to the fraction with numerator 6 k w and denominator z%0D%0A%0D%0Ay=7kwz%0D%0A%0D%0A=%0D%0A7%0D%0A%0D%0A%0D%0A%0D%0Ay is equal to the fraction with numerator 7 k w and denominator z%0D%0A%0D%0Ay=7wxz%0D%0A%0D%0A=%0D%0A7%0D%0A%0D%0A%0D%0A%0D%0Ay is equal to the fraction with numerator 7 w x and denominator z%0D%0A%0D%0Ay=6wxz

Answer 1

The correct equation that models the relationship is:

y = kwx/z

where k is a constant of variation.