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22 Cards in this Set
- Front
- Back
Consecutive Integers
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Integers in counting order
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defining a variable
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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.
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dimensional analysis
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The process of carrying units throughout a computation.
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equivalent equations
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Equations that have the same solutions.
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extremes
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In the rations a/b =c/d, a and d are the extremes.
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formula
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An equation that states a rule in the relationship between certain quantities.
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four-step problem solving
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1. Explore the problem
2. Plan the solution 3. Solve the problem 4. Check the solution |
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identity
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Equations that are true for all values of the variables.
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means
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The middle terms of the proportion.
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mixture problem
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Problems in which two or more parts are combined into the whole.
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multi-step equations
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Equations with more than one operation.
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number theory
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The study of numbers and the relationships between them.
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percent of change
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When an increase or decrease is expressed as a percent.
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percent of decrease
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The ration of an amount of decrease to the previous amount, expressed as a percent.
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percent of increase
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The ration of an amount of increase to the previous amount, expressed as a percent.
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Proportion
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An equation of the form a/b =c/d stating that two ratios are equivalent.
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ratio
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A comparison of two numbers by division.
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rate
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The ratio of two measurements having different units of measure.
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scale
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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.
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solve an equation
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The process of finding all values of the variable that make the equation a true statement.
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uniform motion problems
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Problems in which an object moves at a certain speed, or rate.
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weighted average
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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.
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