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March 23rd, 2009, 12:44 PM  #1 
Newbie Joined: Mar 2009 Posts: 1 Thanks: 0  Systems of linear equations in two variables
Hey! Can someone help me with these assignments? I am absolutely lost. I have no idea what to do. I would be great if someone could help me, and tell me some formulas..or show me how to calculate it. I am really really bad in math, so don't wonder... A Don Jere plant manufactures riding lawn mowers. The plant has fixed costs of $65,000 per day, and variable costs of $1,100 for each lawn mower made. Each mower sells for $1,600. 1. Find the cost and revenue functions. 2. Find the break even point. 3. Graph and label the cost and revenue functions on the same graph, and identify the break even point. Thanks to those who sacrifice their time in order to help me Maxie 
April 2nd, 2009, 10:33 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,919 Thanks: 2201 
More information is needed, so I'll simplify things by considering only one day, and assuming that N mowers are made on that day, where N can have any value. Cost = $65,000 + $1,100N and Revenue = $1,600N, so these are equal when $65,000 = $500N, i.e., when N = 130. 

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