# Search for tag: "problem"

#### Solving a word problem involving a sum and another basic relationship using a system of lineaer equations

This demo discusses how to set up two equations to solve the situation described, and then choose the best method to use to solve for each of the variables.

From  Tom Grant 6 plays 0

#### Writing a multi-step expression for a real-world situation

This demo takes some thought so you may want to watch it a few times to fully understand. Writing the expression and then we simplify it so that it is more usable in future.

From  Tom Grant 7 plays 0

#### Solving a word problem with two unknowns using a linear equation.

This shows how to represent the two unknowns using their given relationship so that a linear equation can be written using one variable. Then that equation is solved to answer the question

From  Tom Grant 5 plays 0

#### Multiplicative property of equality with whole numbers

A quick statement of the property followed by two examples of its use.

From  Tom Grant 5 plays 0

#### Finding a final amount in a word problem on exponential growth or decay

This demonstrates how to write the function that includes the initial amount multiplied by the percent remaining or the initial amount multiplied by one plus the percent increase, with either being…

From  Tom Grant 7 plays 0

#### Square roots of perfect squares with signs

This describes what to look for when simplifying radicals.

From  Tom Grant 14 plays 0

#### Simplifying a ratio of polynomials: Problem type 2

A second look at factoring the top and bottom of a fraction in algebra that then reduces that fraction.

From  Tom Grant 15 plays 0

#### Finding the roots of a quadratic equation of the form ax^2 + bx = 0

This type of equation is solved by factoring a GCF from both terms once the proper form is achieved. Then the zero product property allows the separation of the two factors into two solvable linear…

From  Tom Grant 12 plays 0

#### Factoring a perfect square trinomial with leading coefficient 1

One of the simpler factoring techniques if you know what you are looking for.

From  Tom Grant 12 plays 0

#### Solving a word problem using a system of linear equations of the form Ax + By = C

Talks about how to interpret the words to create two equations, then solves them together using the elimination method, making opposites of one variable's terms sot that the equations can be…

From  Tom Grant 13 plays 0

#### Solving a percent mixture problem using a linear equation

Shows how to organize the information given in words using a chart. This allows you to use the percent formula to show how the columns are combined to then find an equation to solve for the answer,

From  Tom Grant 52 plays 0

#### Finding the final amount given the original amount and a percentage increase or decrease.

Finding the amount from taking a percentage off or adding a percentage on, then finding the new amount.

From  Tom Grant 9 plays 0

#### Finding the value for a new score that will yield a given mean

Describes an algebraic method for finding what you need for your next score to achieve a certain average or mean.

From  Tom Grant 29 plays 0

#### Solving a distance, rate, time problem using a linear equation

An introduction to distance, rate, and time problems where a chart is helpful to organize the information.

From  Tom Grant 22 plays 0

#### Solving a one-step word problem using the formula d = rt

A simple word problem to get us started with "distance equals rate (or speed) times time.

From  Tom Grant 6 plays 0

#### Additive property of equality with integers

The beginnings of understanding how to solve equations by doing something to both sides, keeping it equal

From  Tom Grant 10 plays 0