Question 430930
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi
 n = kt
20 = k*5/2
 8 = k
 n = 8t
135 = 8t
 t =  16.875 hrs

the profit margin of producing x number of plasma tv's can be model by the
 function Q(x)={{{5000/(270-.4x)}}} 
 Q(100)={{{5000/(270-.4*100)}}} = 5000/230= $21.74
 Q(500)={{{5000/(270-.4*500)}}} = 5000/70 = $71.43
 Q(750)={{{5000/(270-.4*750)}}} = 5000/-30 = -$166.67
function undefined when: 270-.4x = 0 OR when x = 675