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10-28 vocab
Term | Definition |
---|---|
rate | a certain quantity or amount of one thing considered in relation to a unit of another thing and used as a standard or measure: at the rate of 60 miles an hour. |
unit rate | A unit rate is a ratio of two units. |
proportions | comparative relation between things or magnitudes as to size, quantity, number, etc.; ratio. |
percents | figured or expressed on the basis of a rate or proportion per hundred (used in combination with a number in expressing rates of interest, proportions, etc.): to get three percent interest. Symbol: % |
tax | a specific amount of money that is charged to an item. usually 0.06% charge |
gratuities | 1. a gift of money, over and above payment due for service, as to a waiter or bellhop; tip. 2. something given without claim or demand. 3. British. a. a bonus granted to war veterans by the government. b. a bonus given military personnel on discharge or |
commission | the act of committing or giving in charge. |
percent decrease | To calculate percent increase, first subtract the greater number from the smaller number to find absolute change. Divide the absolute change by the original number and multiply your answer by 100. |
percent increase | To calculate percent increase, first subtract the greater number from the smaller number to find absolute change. Divide the absolute change by the original number and multiply your answer by 100. |
markup | the difference between the cost price and the selling price, computed as a percentage of either the selling price or the cost price. |
markdown | the amount by which a price is reduced. |
simple interest | Interest is a fee paid by a borrower of assets to the owner as a form of compensation for the use of the assets. It is most commonly the price paid for the use of borrowed money,[1] or money earned by deposited funds |
percent error | Subtract Approximate value from Exact value. Ignore any minus sign. Example: I estimated 260 people, but 325 came. 260 - 325 = -65, ignore the "-" sign, so my error is 65 |
scale drawing | A drawing that shows a real object with accurate sizes except they have all been reduced or enlarged by a certain amount (called the scale). |
scale factors | A scale factor is a number which scales, or multiplies, some quantity. In the equation y=Cx, C is the scale factor for x. C is also the coefficient of x, and may be called the constant of proportionality of y to x. For example, doubling distances correspo |
similar figures | two or more factors have a common decimal |
proportional relationship | In mathematics, two variables are proportional if a change in one is always accompanied by a change in the other, and if the changes are always related by use of a constant. The constant is called the coefficient of proportionality or proportionality cons |