A rectangular piece of land is to be fenced using two kinds of fencing. Two opposite sides will be fenced using standard fencing

Question

A rectangular piece of land is to be fenced using two kinds of fencing. Two
opposite sides will be fenced using standard fencing that costs $6/m, while
the other two sides will require heavy-duty fencing that costs $9/m. What are
the dimensions of the rectangular lot of greatest area that can be fenced for a
cost of $9000?

Kunduz · Accepted Answer

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