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7th- Module 5 : Proportions and Percent
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Unit 2: Rates and Proportional Relationships Module 5 : Proportions and Percent
Terms in this set (9)
Proportion
an equation that states two ratios are equal
Percent
a ratio comparing a number to 100
Rate
a ratio that compares two quatities measured in different units
Ratio
a comparison of two quatities by division
Unit Rate
a rate in which the second quantity in the comparison is one unit
Percent Decrease
a percent change in describing a decrease in a quantity
Percent Increase
a percent change describing an increase in a quantity
Principal
the initial amount of money borrowed or saved
Simple Interest
a fixed percent of the principal. It is found using the formula I=prt, where p represents the principal, r the rate of interest and t the time
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