A dressmaker has fixed monthly costs of e1,350. Her variable material costs per dress are e34, and she sells the finished product for e79 each
(b) How many dresses have to be sown and sold per month for her to break even?
(c) Find the profit function, and determine the profit when 90 dresses are sown and sold per month.
(d) How many dresses have to be sown and sold per month to yield a monthly profit of e4,500?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
b) P= 79n - (1350 +34n)
P= 55n - 1350
P= 1350/55 = n
breakeven = 24.54 or 25
c) P= 55(90) - 1350 = 3600
d) 55n -1350= 4500
55n = 5850
n=5850/55
n= 106.36 (107)
+89 