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Unit 5 - Mr. Hunt

Ratios and Proportional Reasoning

TermDefinition
Scale Up/Down to change size proportionally either bigger or smaller
Proportion two equal fractions or ratios
Ratio a relative comparison of two quantities
Unit Rate a comparison of two values where 1 is a unit ( 12 miles to 1 gallon)
Rate a ratio that compares quantities of different units
Multiplicative Comparison a relationship BETWEEN two quantities
Percent a ratio that has 100 on the bottom as a total
Sales tax the amount added on to the purchase of something bought.
Discount A reduction in price. Often said as a percent of the total.
Commission A fee paid for services, usually a percentage of the total cost.
% increase The percent that is added on to the total (100%)
% decrease The percent that is subtracted from the total (100%)
tips A percent added on to a meal served by a waiter/waitress or other excellent customer service. Usually 20%.
mark ups the amount added to the cost price of items to cover the store's overhead and profit.
Created by: mrhunt