Question

The variable z is inversely proportional to x. When x is 3, z has the value 2.

What is the value of z when x= 13?

Answer 1

z = 6/13

Explanation:

The new value of x is 13/3 times the old value. Since z is inversely proportional to x, it will be multiplied by the inverse of that, 3/13.

2 × 3/13 = 6/13 . . . . value of z when x=13