A factory produces x widgets per day. The factory's fixed costs are $8000 per day. The price per widget is $70 and the variable costs are $30 per widget. How many widgets need to be produced for profits of $5440 a day? Choose the correct answer:
A) 42.33  B) 90.33  C) 168  D) 224  E) 311
profits=5440=40x-8000 --&gt; x=311   Answer 311.
<result>E</result>
A factory produces x widgets per day. The factory's fixed costs are $8000 per day. The price per widget is $70 and the variable costs are $30 per widget. How many widgets need to be produced for profits of $5440 a day?