7th Grade Milestone Review - 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 a unit rate?

Back

To calculate a unit rate, divide the quantity by the number of units. For example, if you have 60 miles in 3 hours, the unit rate is 60 miles ÷ 3 hours = 20 miles per hour.

Front

If a person can complete a task in a certain amount of time, how do you find their rate of completion?

Back

Divide the total amount of work done by the total time taken. For example, if 120 words are typed in 2 minutes, the rate is 120 words ÷ 2 minutes = 60 words per minute.

Front

What is the unit rate of 13 houses visited in 3 hours?

Back

The unit rate is 13 houses ÷ 3 hours = 4.33 houses per hour.

Front

How do you find the number of items per ounce in a bag?

Back

Divide the total number of items by the total weight in ounces. For example, if there are 75 pieces of candy in a 15 oz bag, the calculation is 75 pieces ÷ 15 oz = 5 pieces per ounce.

Front

What is the price per ounce if a jar of mayonnaise costs $2.99 for 30 oz?

Back

To find the price per ounce, divide the total price by the total ounces: $2.99 ÷ 30 oz = $0.10 per ounce.

Front

If it costs $5 for 2 pounds of gravel, how do you find the cost per pound?

Back

Divide the total cost by the total weight in pounds: $5 ÷ 2 pounds = $2.50 per pound.

Front

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

Back

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

Front

How can you express a unit rate as a fraction?

Back

A unit rate can be expressed as a fraction where the numerator is the total quantity and the denominator is the number of units. For example, 5/2 dollars per pound.

Front

What is the relationship between unit rates and ratios?

Back

Unit rates are a specific type of ratio that compares a quantity to one unit of another quantity.