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22 Cards in this Set
 Front
 Back
Consecutive Integers

Integers in counting order


defining a variable

Choosing a variable to represent on of the unspecified numbers in a problem and using it to write expressions for the other unspecified numbers in the problem.


dimensional analysis

The process of carrying units throughout a computation.


equivalent equations

Equations that have the same solutions.


extremes

In the rations a/b =c/d, a and d are the extremes.


formula

An equation that states a rule in the relationship between certain quantities.


fourstep problem solving

1. Explore the problem
2. Plan the solution 3. Solve the problem 4. Check the solution 

identity

Equations that are true for all values of the variables.


means

The middle terms of the proportion.


mixture problem

Problems in which two or more parts are combined into the whole.


multistep equations

Equations with more than one operation.


number theory

The study of numbers and the relationships between them.


percent of change

When an increase or decrease is expressed as a percent.


percent of decrease

The ration of an amount of decrease to the previous amount, expressed as a percent.


percent of increase

The ration of an amount of increase to the previous amount, expressed as a percent.


Proportion

An equation of the form a/b =c/d stating that two ratios are equivalent.


ratio

A comparison of two numbers by division.


rate

The ratio of two measurements having different units of measure.


scale

The ratio or rate used when making a model of something that is to large or to small to be conviently shown at actually size.


solve an equation

The process of finding all values of the variable that make the equation a true statement.


uniform motion problems

Problems in which an object moves at a certain speed, or rate.


weighted average

The sum of the product of the number of units and the value per unit divided by the sum of the number of units, represented by M.
