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# Unit 3 Vocabulary

### Proportional Relationships

TermDefinition
Rate of change A ratio that compares the amount of change in a dependent variable to the amount of change in an independent variable.
Capacity The amount a container can hold when filled (ounces, pints, quarts, and liters)
Customary The measurement system often used in the United States
Length inches, feet, yards, centimeters, and meters
Mass the amount of matter that an object takes up (grams, milligrams, and kilograms)
Metric System A decimal system of weights and measures that is used universally in science and commonly throughout the world
proportion An equation that states that two ratios are equivalent.
Percent A ratio comparing a number to 100.
Ratio A comparison of two quantities by division.
Weight The heaviness of a person or thing (Pounds and ounces)
Conversion Factor a mathematical tool for converting between units of measurement.
Constant A value that does not change
Equivalent Ratios Ratios that name the same comparison
Rate A ratio that compares two quantities measured in different units.
Percent Increase A percent change describing an increase in a quantity.
Percent Decrease A percent change describing a decrease in a quantity
Percent of Change The amount stated as a percent that a number increases or decreases.
Unit Rate A rate in which the second quantity in the comparison is one unit
Created by: jbrake13