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20 Cards in this Set

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rate
a comparison of the measurements of two different units or things
ratio
a comparison of two quantities that tells the scale between them (example: Females to males in a math class is 14 to 12, or 7 to 6; also written 7:6 or 7/6)
dependent
the outcome of this event is affected by the outcome of a first event
scale
the number a ratio is multiplied by to find an equivalent ratio
denominator
in a fraction, the number that is on the bottom
unit rate
the unit rate compares an amount to ONE unit
compare
to show how two or more things are alike and diffferent
decimal
a percent can be expressed as afraction or as a DECIMAL
variable
a VARIABLE is something that can change and be counted or measured
difference
when you subtract one number from another number the answer you get is called the DIFFERENCE
equation
a mathematical sentence with an equal sign between two expressions
rate table
a RATE TABLE is used to find and organize equivalent ratios
an INDEPENDENT variable or 'INDEPENDENT'
An independent variable can stand by itself. It is not affected by another event.
an equivalence
When two or more things have the SAME VALUE, it is an EQUIVALENCE.
a fraction
a number expressed with a numerator and a denominator
a graph
a visual representation of data ... which allows patterns to be seen easily
percent
a fraction expressed with 100 in the denominator... also can be expressed in decimal form
a scale factor
a number that shows in all ways (length and width) how much smaller or larger something is compared to a similar object
proportion
an equation stating that two ratios are equal
data
______ are related facts, usually numbers, arranged in charts or graphs.