Algebraic Expressions

Master algebraic expressions! Write, identify, and solve. Understand variables, coefficients, and constants.

Sam earns minimum wage, which is $7.25 per hour. Write an expression that tells how much money Sam makes. Identify the constant and what it means. Identify the coefficient and what it means. Identify the variable and what it means. Sally earns minimum wage, as well as her part of the tips at the restaurant she works at. She usually earns about $20 in tips each day. Write an expression that tells how much money Sally makes each day she works. Identify the constant and what it means. Identify the coefficient and what it means. Identify the variable and what it means. Joe had a certain amount of money. After a few days, he managed to double his money. Then he spent $25 on a new shirt. Write an expression that tells how much money Joe has now. Identify the constant and what it means. Identify the coefficient and what it means. Identify the variable and what it means. A restaurant sells drinks for $2. For every refill you get, you must pay $0.25. Write an expression that you can use to find the total cost of your drink. Identify the constant and what it means. Identify the coefficient and what it means. Identify the variable and what it means. Which expression represents 7 less than a number, divided by 2? 7-n (n-7) n-7 Which expression represents 3 times the sum of a number and 6? 3n+6 3*n+6 3(n+6) A person starts out with $500 in their savings account, but spends $25 each week. Write an expression that tells how much money they have. Identify the constant and what it means. Identify the coefficient and what it means. Identify the variable and what it means. What is the definition of a constant? What is the definition of a coefficient? Why is it so important to know the difference between a constant and a coefficient?