Inversely proportional help

Question

The variable  is inversely proportional to . When  is 7,  has the value 0.28571428571429.

What is the value of  when  17?

Answer 1

Inversely proportionality has the general form:

y = k/x

where k is a constant. When x = 7, y = 0.28571428571429:

y = k/x

0.28571428571429 = k/7

7 · 0.28571428571429 = k

2 = k

y = k/x

y = 2/17 = ___?