Answer:
Z=1.055
Step-by-step explanation:
Z is inversely proportional to X: [tex]Z=\frac{K}{X}[/tex] Where K is a constant
X=18, Z=1.583333333333 we can find K value
K=Z*X =1.58333333333*12= 19
So, Using X=18 We have the following
[tex]Z=\frac{19}{18}[/tex]= 1.055
