Ratio tables, unit rates, best buy and graphs

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:b'.

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 'x per 1 unit'.

Front

How do you find the unit rate from a ratio?

Back

To find the unit rate, divide the first quantity by the second quantity.

Front

What is the unit rate of 120 chairs to 30 tables?

Back

4:1

Front

What does 'best buy' mean?

Back

'Best buy' refers to the option that offers the best value for the price, often determined by comparing unit prices.

Front

How do you calculate the unit price of an item?

Back

To calculate the unit price, divide the total price by the number of units.

Front

If Doritos cost $4.39 for 11.5 oz, what is the unit price?

Back

Unit price = $4.39 / 11.5 oz = $0.38 per oz.

Front

If Cheetos cost $2.24 for 9.75 oz, what is the unit price?

Back

Unit price = $2.24 / 9.75 oz = $0.23 per oz.

Front

Which is the better deal: Doritos or Cheetos?

Back

Cheetos, because it has a lower unit price.

Front

What is the unit rate of 8 apples costing $5.20?

Back

Unit rate = $5.20 / 8 apples = $0.65 per apple.