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rateratio proportion

Math 6e Number Sense 2 - Mid-Unit Vocabulary

QuestionAnswer
Ratio A comparison of two quantities that can be expressed as a fraction given - 8 boys and 10 girlsratio - 8:10simplified - 4:5equivalent - 16:20, 80:100
Proportion An equation that shows two ratios are equivalent. 4/5 = 32/404 x 40 = 5 x 32160 = 160
Cross - Products To determine if two ratios form a proportion use the _____________ 4/9=?5/1040 is not equal to 45It is NOT a proportion because the cross-products are not equal!!!
Base The term used to represent the whole quantity in the percent proportion. What is 20% of 40?40 is the base.
Percent A ratio that compares a number to 100? 95% = 95/100
Unit Rate A ratio that compares two quantities with different units and when simplified hasa denominator equal to 1. $2.25/32 oz. = $0.07 per ounce
extremes The first and last terms of a percent proportion. 4:5 = 16:204 and 20 are the extremes.
means The two middle terms in the ratios of a proportion. 4:5 = 16:205 and 16 are the means.
Rate Comparison of two quantities with different units. 20 miles:30 minutes
equivalent Two ratios that have the same value. 4:10 = 8:20 = 2:5, etc.
Created by: lholmes23
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