Question 1147018
{{{z=Cxy}}}, and ,{{{x=Kw}}}, for two constants C and K.


{{{system(x=z/(Cy),x=Kw)}}}


{{{z/(Cy)=Kw}}}


{{{z=Cy*Kw}}}


{{{z=CKyw}}}-----------------to read, z varies jointly as y and w.  The variation constant is CK.