Create and use algebraic formulaeAlgebraic formulae

A formula can be created and used for something that is calculated frequently.

For instance, plumbers often work out how much to charge a customer based on two different costs:

• a fixed call out charge
• an hourly rate for their work

Writing a formula for the total cost of a job is useful for a plumber so that they could quickly calculate costs for their customers more easily.

Once a formula is written, the plumber only needs to input how long the job would take in hours, and come up with a total cost to quote very easily.