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rateratio proportion
Math 6e Number Sense 2 - Mid-Unit Vocabulary
| Question | Answer | |
|---|---|---|
| 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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