Real math help.
How Do You Find the Base of a Parallelogram if You Know the Area and Height?
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Want to find the length of the base of a parallelogram? Already know the area and the height? Then you can use the formula for the area of a parallelogram to find that missing measurement! Check out this tutorial to learn how!
Background Tutorials
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Evaluate expressions at specific values of their variables. Include expressions that arise from formulas used in real-world problems. Perform arithmetic operations, including those involving whole-number exponents, in the conventional order when there are no parentheses to specify a particular order (Order of Operations).
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How Do You Evaluate an Algebraic Expression?
Plugging variables into an expression is essential for solving many algebra problems. See how to plug in variable values by watching this tutorial.
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What is a Variable?
You can't do algebra without working with variables, but variables can be confusing. If you've ever wondered what variables are, then this tutorial is for you!
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Give examples of linear equations in one variable with one solution, infinitely many solutions, or no solutions. Show which of these possibilities is the case by successively transforming the given equation into simpler forms, until an equivalent equation of the form x = a, a = a, or a = b results (where a and b are different numbers).
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How Do You Solve an Equation Using Division?
Solving an equation for a variable? Perform the order of operations in reverse! Check it out in this tutorial.
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Further Exploration
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Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers. Solve equations of these forms fluently. Compare an algebraic solution to an arithmetic solution, identifying the sequence of the operations used in each approach.
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How Do You Find the Width of a Rectangle if You Know its Length and Perimeter?
Trying to figure out a missing side length of a rectangle? Got the perimeter and the other side length? Then you can use that information and the formula for the perimeter of a rectangle to find that missing length! This tutorial will show you how!
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