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 cost per item or the ratio of one quantity to another.

Front

How do you calculate the unit rate of chairs to tables if there are 120 chairs and 30 tables?

Back

To calculate the unit rate, divide the number of chairs by the number of tables: 120 chairs ÷ 30 tables = 4. Therefore, the unit rate is 4:1.

Front

When comparing prices for bulk items, what is the best method to determine the best deal?

Back

To determine the best deal, calculate the unit price for each option (cost per unit) and compare them. The option with the lowest unit price is the best deal.

Front

If 15 kg of tomatoes costs $32.25, what is the unit price per kg?

Back

To find the unit price, divide the total cost by the total weight: $32.25 ÷ 15 kg = $2.15 per kg.

Front

What is the unit price for cloth if it costs $16.52 for 6 meters?

Back

The unit price is calculated by dividing the total cost by the total length: $16.52 ÷ 6 m = $2.75 per meter.

Front

How do you determine which of two deals is better when given different quantities and prices?

Back

Calculate the unit price for each deal and compare them. The deal with the lower unit price is the better option.

Front

What is the unit price for oranges if 8 dozen costs $52.16?

Back

To find the unit price per dozen, divide the total cost by the number of dozens: $52.16 ÷ 8 dozen = $6.52 per dozen.

Front

If 27 ounces of nacho chips cost $3.51, what is the unit price per ounce?

Back

To find the unit price, divide the total cost by the total weight: $3.51 ÷ 27 ounces = $0.13 per ounce.

Front

What does it mean if neither option is the best deal when comparing prices?

Back

It means that both options have a higher unit price compared to other available options, indicating that neither is a cost-effective choice.

Front

How can you express a ratio in simplest form?

Back

To express a ratio in simplest form, divide both terms of the ratio by their greatest common divisor (GCD).