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 maxpalme March 23rd, 2009 12:44 PM

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 :D
Maxie

 skipjack April 2nd, 2009 10:33 AM

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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