Question

the variable Z is invery proportional to X. when X is 3, Z has the value 6. what is the value of Z when X = 12

Answer 1

"inversely proportional," please.

z = k/x

When x is 3, z = 6; find k: 6 = k/3, or k = 18.

Then z = 18/x. When x = 12, z = 18/12 = 2/3 (answer)