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Module 5-5.3 Proportions and Percent

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yarelisoto1252's version from 2016-04-18 03:03

Section

Question Answer
Proportion An equation that states that two ratios are equivalent.
RatioA comparison of two quanities by division.
PercentA ratio that compares a part to the whole using 100.
ExpressionA mathematical phrase containing variables, constants, and operation symbols.
Percent Increasedescribes how much a quantity increases in comparison to the original amount.
FormulaPercent Change= Amount of Change/ Original Amount
Steps:1. Substitute values. 2. Divide. 3. Write as a percent and round.
Percent Decreasedescribes how much a quantity decreases in comparison to the original amount.
Leeson of VariablesA variable doesn't have to be the letter x.
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