Ratios, Rates and Unit Rates

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as miles per hour or dollars per pound.

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit, allowing for easy comparison of different rates.

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the total quantity by the number of units. For example, if 3 pounds of granola cost $3.75, the unit rate is $3.75 ÷ 3 = $1.25 per pound.

Front

If a box of 35 diapers costs $6.99, what is the unit rate per diaper?

Back

The unit rate is $0.20 per diaper.

Front

If Will spent $3.75 for 3 pounds of granola, what is the unit rate in dollars per pound?

Back

The unit rate is $1.25 per pound.

Front

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

Back

The unit rate is $8 per pound.

Front

How do you determine the better buy between two products?

Back

To determine the better buy, calculate the unit rate for each product and compare them. The product with the lower unit rate is the better buy.

Front

An eight pack of juice boxes costs $4.79, and a 12 pack costs $6.59. Which is the better buy?

Back

The 12 pack is the better buy.

Front

The Williams family bought four concert tickets for $252. What was the price per ticket?

Back

The price per ticket is $63.00.