Pre-Algebra Ch. 6
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| constant of proportionality | a constant ratio or unit rate of a proportion
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| cross products | if a/c = b/d then ad = bc
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| discount | the amount by which the regular price of an item is reduced
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| percent equation | an equivalent form of a percent proportion, where % is written as a decimal (part = percent x whole)
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| percent of change | the ratio of the increase or decrease of an amount to the original amount
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| percent of decrease | the ratio of an amount of decrease to the previous amount, expressed as a percent / a negative percent of change
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| percent of increase | the ratio of an amount of increase to the original amount, expressed as a percent
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| percent proportion | part/whole = % / 100
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| population | a larger group used in statistical analysis
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| proportion | a statement of equality of two or more ratios
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| proportional relationship | the ratios of related terms are equal
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| rate | a ratio of two measurements having different unit rates
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| ratio | a comparison of two numbers by division
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| sample | a subgroup or subset of a population used to represent the whole population
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| scale | the relationship between the measurements on a drawing or model and the measurements of the real object
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| scale drawing or scale model | a drawing that is used to represent an object that is too large or too small to be drawn at actual size
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| scale factor | the ratio of a length on a scale drawing or model to the corresponding length on the real object
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| simple interest | the amount of money paid or earned for the use of money (I=prt)
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| unbiased sample | a random sample that is representative of a larger sample
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| unit rate | a rate simplified so that it has a denominator of 1
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Miss Brinkoetter
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