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# Unit 3

### Proportional Reasoning with Rates

TermDefinition
terminating decimal A decimal number that ends rather than repeats
repeating decimal A decimal that continues in a pattern rather than terminating
rate A ratio that compares two terms measured in different units.
unit rate A rate in which the second term's quantity is ONE unit.
proportion an equation that states two ratios are equivalent.
distance The amount of space between two things
time The ongoing sequence of events taking place. Measured in seconds, minutes, hours, day, months, and years.
average An estimation of or approximation to an arithmetic mean.
speed The rate at which someone or something is able to move or operate.
liquid Having a consistency like that of water or oil, flowing freely but of constant volume, no definite shape.
solid Firm and stable in shape and volume.
increase Growing larger or greater.
decrease To maker smaller.
length The measurement of something from end to end.
scale The ratio of the length in a drawing or model to the length of the real object.
scale model A representation or copy of an object that is larger or smaller than the actual size of an object but maintains proportions of that object.
actual size The true dimensions of an object.
scale factor The ratio used to enlarge or reduce an object creating similar figures.
Created by: Mrs Ott

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