Businesses often use mathematical models that assess the potential valuation of the project against the investment to be made for making such decisions. There is a saying "a fool and his money are soon parted". Bankers use algebra to calculate interest, taxes and every other duty pertaining to the industry. Accountants need algebra to balance spreadsheet after spreadsheet of spending reports. It deals with money and what happens when you borrow money, open a savings account to earn interest, or retire. How many bicycles should your bicycle company build this year? Get to know some commonly used fractions and their decimal equivalents, area and perimeter formulas, angle measurements, and financial formulas — including understanding interest rates and common financial acronyms — to help with your business … The student will be able to define a variable. When it comes to money, as you may have learned, there are many people who want to take your money in various clever ways. BUSINESS MATH: Using Algebra to Make Business Decisions . Welcome to the "Algebra in Finance" section. Objectives: The student will be able to define variable, fixed, and final amounts from a word problem. Business owners use it to calculate cost, revenue and margin of profit. Algebra will always have a part in every aspect of business. Math is an important part of managing business.