Algebra

Fundamental algebraic concepts including equations, inequalities, and functions.

Practical Applications

Budgeting and Saving Money

Algebra in Personal Finance

Algebra helps you make smart decisions with your money! You can use variables and equations to create a budget, plan savings, or figure out how long it will take to reach a goal.

Creating a Budget

If your weekly allowance is \( a \) dollars, and you spend \( s \) dollars on snacks, then what you have left is \( a - s \).

Savings Goals

If you save $5 each week, after \( w \) weeks you'll have \( 5w \) dollars. Want to save $100? Set up the equation \( 5w = 100 \) and solve for \( w \).

Real-Life Impact

Algebra makes it easy to plan and adjust your finances, so you can save up for something special or avoid running out of money!

Examples

  • If you earn $10 per week and spend $3 on snacks, the equation \( 10 - 3 = 7 \) shows how much you have left.

  • Saving $5 per week to reach $50: \( 5w = 50 \Rightarrow w = 10 \) weeks.