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Chapter 2 Vocab

Across
An equation in the form a/b=c/d, where b, d is not equal to 0, stating that two equations are equivalent.
The ratio of an amount of decrease to the previous amount, expressed as a percent.
The ratio of an a mount of increase to the previous amount, expressed as a percent.
A formula or equation with several equations.
Expressions that denote the same value for all values of the variables.
A ratio of two quantities, the second of which is a unit.
A mathematical sentence that contains an equals sign.
The sum of numbers in a set of data divided by the number of items in the data set.
A comparison of two numbers by division.
An equation that is true for every value of the variable.
Down
The process of carrying units throughout a computation.
The relationship between the measurements on a drawing or model and the measurements of the real object.
When an increase or decrease is expressed as a percent.
Equations with more than one operations.
An equation that states a rule for the relationship between certain quantities.
In the ratio a/b = c/d, a and d are the
The process of including units of measurements when computing.
A model used to represent an object that is too large or too small to be built at actual size.
Symbols used to represent unknown numbers or values.
The ratio of two measurements having different units of measure