Problema Solution
The variable x varies jointly with y and z, and x=8 when y=-6 and z=-3, what is the constant of variation?
Answer provided by our tutors
x =k*yz, where k is the constant of variation
8 = k*(-6)*(-3)
........
........
k = 8/18
k = 4/9
k = 0.44
The constant of variation is 4/9 or 0.44.