Unit Rates

A unit rate is a comparison of two different quantities where one of the quantities is expressed as a quantity of one. For example, if you buy 3 apples for $6, the unit rate is $2 per apple.

To calculate the unit cost per item, divide the total cost by the number of items. For example, if 15 pizzas cost $97.50, the unit cost per pizza is $97.50 ÷ 15 = $6.50.

The unit rate is calculated by dividing the total cost by the total weight: $40 ÷ 5 pounds = $8 per pound.

To find the unit rate, divide the total number of customers by the total hours: 120 customers ÷ 8 hours = 15 customers per hour.

To determine the slowest reading rate, calculate the rate for each option (pages per minute) and compare them. The option with the lowest rate is the slowest.

To find the price per gallon, divide the total cost by the number of gallons: $15.00 ÷ 6 gallons = $2.50 per gallon.

The formula for calculating unit rates is: Unit Rate = Total Quantity / Number of Units.

Understanding unit rates helps in making informed decisions, such as comparing prices, understanding speeds, and evaluating costs.

An example of a unit rate is the price of a product per item, such as $3 per bottle of water.

A unit rate can be expressed as a fraction by placing the total quantity in the numerator and the number of units in the denominator. For example, 8 miles in 2 hours can be written as 8/2.