A rectangular area is to be enclosed and divided into thirds. The family has $920 to spend for the fencing material. The outside fence costs $10 per foot installed, and the dividers cost $20 per foot installed. Let x represent the length (in feet) of a side perpendicular to the dividers, and let y represent the length (in feet) of a side parallel to the dividers. Write an equation that represents the area of the enclosed rectangle in terms of the variable y.

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A: Use area formula of rectangle

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A: Please see the below picture for detailed solution.

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.