The variable z is inversely proportional to x. When x is 18, z has the value 0.83333333333333. What is the value of z when x= 27?

Answer 1

Z is inversely proportional to x so we can write as

Z = k×1/x. When you remove proportionality constant, substitute with a constant k

.833.. = k×1/18. Solve for k

k =14.94

Now solve for Z by replacing value of k new value of x

Z = 14.94×1/27 = 0.55