Vocabulary
Rate - A rate is a ratio that compares two quantities measured in different units.
Unit Rate - A rate whose denominator is 1 when it is written as a fraction. 675 beats
5 minutes
A rate is a ratio that is used to compare different kinds of quantities.http://www.mathvillage.info/node/71
A unit rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity.
Some common unit rates are miles (or kilometers) per hour, cost per item, earnings per week, etc. In each case the first quantity is related to 1 unit of the second quantity.
Examples
| At a school dance, there are 6 girls for every 3 boys. |
 |
|
What is the ratio of girls to boy as a unit rate? (girls per boy)  |
What is the ratio of boys to girl as a unit rate? (boys per girl) |
|
No comments:
Post a Comment