Respuesta :

MathPhys

Answer:

6

Step-by-step explanation:

x varies directly with y and inversely with z:

x = ky/z

x = 14 when y = 49 and z = 7.

14 = k (49)/(7)

k = 2

When y = 18 and z = 6:

x = 2 (18)/(6)

x = 6

kayleebug2004kb

Answer:

Step 1: Set up the correct type of variation equation.

              y = kx/z

Step 2: Determine the constant of variation.

              k = 6  

Step 3: Determine the missing value.

            When y = 3 and z = 8, x =  4.