Question 250862
The cost for manufacturing a CD varies inversely with the number of CDs made.
 If the cost is @2.50 per CD when 10,000 made, then what is the cost per Cd when 100,000 are made? 
:
Since it varies inversely, it should be
{{{2.50/x}}} = {{{100000/10000}}}
:
{{{2.50/x}}} = 10
:
10x = 2.50
x = .25 for 100000