Solving the Same Rate-Time-Distance Problem Using One and Two Variables
Two different ways to write an algebraic equation for the same word problem involving rate, time, and distance are compared.
Solving the Same Word Problem Using One and Two Variables
Three different approaches to solving the same practical problem are demonstrated. Two approaches using one variable and a two-variable system all produce the same solution to the question of how many balcony seats and how many floor seats can be so...
Practical Problem: Homes and Apartments on 100 Acres
Calculating the number of houses and apartments that can be built on a 60-acre parcel of land given the amount of land allowed for each living unit is expressed in a system of equations involving fractions and solved using the least common denominat...
Solving a Word Problem Using Two Variables
Writing and solving a word problem using a two-variable approach.
Solving a Word Problem Using One Variable
Writing and solving a word problem using a one-variable approach.
Solving a Mixture Problem Using Two Variables
A word problem involving mixing a solution that needs to be 25 percent chlorine is analyzed, the unknown identified, and a two-variable system of equations written to solve the problem.
Some Problems are More Easily Solved Using Two Variables
A practical problem is presented that demonstrates a situation in which two variables and a system of equations is the easiest way to reach a solution.
Solving a Rate-Time-Distance Problem Using One Variable
How to write an equation with one variable to solve a practical problem involving rate, time, and distance using a table to help organize the information.
Solving Equations: Summary: Solving Equations
This clip summarizes how to solve equations. It describes the relationship between word problems, number sentences and equations, noting that the latter are, "
nothing more than a statement that two mathematical expressions are equal." The clip rev...
Solving Equations: Solving An Equation
This clip describes the steps in solving a simple equation. It states that "...the important thing is to study the equation, decide what you want to move around or get rid of, and proceed step by step." It also advises that "
it's usually easiest t...