(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A security fence is to be built around a rectangular parking lot. The front side of the fence costs $60 per meter and the other three sides cost $30 per meter. The total cost of the fence is budgeted to be $7500.

Part a).

Express the area of the lot enclosed by the fence as a function of the length 'x' of the side that cost $60 per meter.

2. Relevant equations

A=length*width

3. The attempt at a solution

I have scanned and uploaded my attempt/work onto imgur. here

http://i.imgur.com/SDB9T.jpg

I have attempted the solution, where I had simplified the equation in relation to the cost I am not entirely sure if after that I had solved for the correct variable ( either y or x), and did I input the equation into the right equation (Area of rectangle as a function of length x).

Any help would be greatly appreciated. Is my attempt correct?

*****also, confused when they ask for the area of the lot as a function of the length x. So essentially I only want variable "x" in my area equation?******

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# Homework Help: Area as a function of side w/ relation to cost

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