Fixing the Furnace

Fixing the Furnace

Illustrative MathematicsVaries

This task can be used to both assess student understanding of systems of linear equations or to promote discussion and student thinking that would allow for a stronger solidification of these concepts. The solution can be determined in multiple ways, including either a graphical or algebraic approach. Modifications of the task might have students only focus on two of the companies at a time. Another modification might be to adjust the values of the service fee and hourly rate so that some of them match.

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