Vocabulary Words (review)
February 13, 2012
1. Base (of a percent) – The whole quantity of which a percent is found.
2. Commission – A percent of the total sales earned by a salesperson.
3. Interest – The amount charged for borrowing money, or the amount of money earned from savings or investments.
4. Percent – A ratio that compares a number to 100.
5. Sales tax – A tax that is imposed on purchased goods. It is usually expressed as a percent of the selling price.
6. Average speed – The average distance traveled per unit time.
7. Rate – A ratio that compares two quantities with different units.
8. Speed – A special rate that expresses distance per unit time.
9. Unit rate – A ratio that compares a quantity to one unit of a different quantity.
10. Ratio – A comparison of two or more numbers or quantities. It describes the relative sizes of the numbers or quantities.
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