Answer: Rate is calculated to determine how quickly something is changing, and it is typically expressed as a ratio or quotient. In mathematical terms, rate is often represented as the change in one quantity per unit change in another quantity. The most common way to express a rate is using division, where you divide the change in one quantity by the change in another quantity. This can be represented as:
Rate = (Change in Quantity 1) / (Change in Quantity 2)
For example, if you want to calculate the speed of a car, you would divide the change in distance traveled by the change in time it took to travel that distance:
Speed = (Change in Distance) / (Change in Time)
The resulting rate (speed) would be expressed in units such as miles per hour (mph) or kilometers per hour (km/h). Rates can be used to measure a wide range of changes, including speed, growth, decay, and many other types of transformations.