Best Buy: Unit Rates

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is expressed as a quantity of one. It is often used to determine the best deal or value for money.

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the total cost by the total quantity. For example, if 200g of lollies costs $1.65, the unit rate is $1.65 / 200g.

Front

What is the significance of comparing unit rates?

Back

Comparing unit rates helps consumers determine which option provides the best value for money, allowing for informed purchasing decisions.

Front

In the context of buying groceries, what does 'best deal' mean?

Back

The 'best deal' refers to the option that offers the lowest cost per unit of measurement, such as price per gram, price per pound, or price per item.

Front

How can you determine which product is a better buy when given different quantities and prices?

Back

Calculate the unit rate for each product and compare them. The product with the lower unit rate is the better buy.

Front

What is the unit rate for 15 kg of tomatoes costing $32.25?

Back

The unit rate is $32.25 / 15 kg = $2.15 per kg.

Front

If 5 lb of sugar costs $25, what is the cost per pound?

Back

The cost per pound is $25 / 5 lb = $5 per lb.

Front

How do you compare gas mileage between two cars?

Back

Calculate the miles per gallon (mpg) for each car by dividing the miles driven by the gallons used. Compare the mpg values to determine which car is more fuel-efficient.

Front

What is the gas mileage for Ms. Salemi's Volvo if it got 120 miles on 5 gallons?

Back

The gas mileage is 120 miles / 5 gallons = 24 miles per gallon.

Front

What is the cost per pencil for 7 pencils at $1.40?

Back

The cost per pencil is $1.40 / 7 pencils = $0.20 per pencil.