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Real-Life Math

Boiler inspectors use math regularly. "You frequently use a Grade 12 level of math," says Malcolm Bishop. Bishop is a boiler inspections manager.

"Higher math skills are used to calculate differing pressures inside vessels and that type of thing," he says.

You are inspecting a coal-burning boiler. It is using a new technology that eliminates the usual sulfur and nitrogen oxide problems. With this new technology, a low-grade coal is burned in a bed of granular limestone.

The limestone reacts with the sulfur. It captures it in the form of calcium sulfate. By keeping the temperature at 1550 F, nitrogen oxide doesn't form. That's an important point.

You are used to working in Celsius, rather than Fahrenheit. What temperature should you aim for in Celsius?

(Conversion: Fahrenheit to Celsius: subtract 32, multiply by 5, and divide by 9)

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