Unit rates

key notes :

1. Definition of Unit Rate

A unit rate is a comparison of two different quantities where one of the quantities is expressed as a value of 1. It is the ratio of two measurements in which the denominator is 1.

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2. Formula for Unit Rate

To find the unit rate, divide the first quantity by the second quantity and express the result per 1 unit of the second quantity.

Example:
If a car travels 180 miles in 3 hours, the unit rate would be:

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3. Real-life Examples of Unit Rates

• Speed: Miles per hour (mi/hr) or kilometers per hour (km/h).
• Price: Cost per item or cost per unit (e.g., dollars per liter, dollars per kilogram).
• Density: People per square mile or students per class.
• Efficiency: Fuel efficiency is miles per gallon (mpg) or kilometers per liter (km/l).

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