Unit rate

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something (e.g., miles per hour, dollars per item).

Front

How do you calculate the unit rate from a total quantity and a total number of units?

Back

To calculate the unit rate, divide the total quantity by the total number of units. For example, if there are 120 customers in 8 hours, the unit rate is 120 ÷ 8 = 15 customers per hour.

Front

If 125 students are riding in 5 buses, how do you find the number of students per bus?

Back

Divide the total number of students (125) by the number of buses (5). The calculation is 125 ÷ 5 = 25 students per bus.

Front

What is the formula to find the average rate of change over a period?

Back

The average rate of change can be calculated using the formula: (Change in quantity) / (Change in time).

Front

How do you express a rate in terms of 'per unit'?

Back

A rate can be expressed in terms of 'per unit' by dividing the total amount by the number of units. For example, if 68 dollars is spent on 4 pizzas, the rate is 68 ÷ 4 = 17 dollars per pizza.

Front

What is the unit rate of temperature change if the temperature dropped 27 degrees over 3 days?

Back

To find the unit rate, divide the total temperature change (27 degrees) by the number of days (3). The unit rate is 27 ÷ 3 = 9 degrees per day.

Front

How can you convert a rate given in minutes to a rate per second?

Back

To convert a rate from minutes to seconds, divide the rate by 60, since there are 60 seconds in a minute.

Front

If Isabella flew 600 miles in 120 minutes, how do you find her speed in miles per minute?

Back

To find the speed in miles per minute, divide the total miles (600) by the total minutes (120). The calculation is 600 ÷ 120 = 5 miles per minute.

Front

What is the significance of unit rates in real-life applications?

Back

Unit rates help compare different quantities and make informed decisions, such as determining the best price for products or understanding speed and efficiency.

Front

How do you find the unit rate of customers per hour if a store sees 120 customers in 8 hours?

Back

Divide the total number of customers (120) by the total hours (8). The unit rate is 120 ÷ 8 = 15 customers per hour.