A comparison of two related quantities.

Often the second quantity is time (per second, per hour, etc) but it can be anything.

Can be in the style "this

Example: Sam makes 3 pancakes every 6 minutes, that is a rate of:

• 3 pancakes per 6 minutes

• 0.5 pancakes per minute

• 30 pancakes per hour

• an hourly rate of 30

• etc

Example: 200 sausages were eaten by 50 people. that is:

• 200 sausages per 50 people

• 100 sausages per 25 people

• 4 sausages per person

• etc

Example: Alex invested $100 for a month and made $3

• the interest rate is 3/100 = 3% per month

• etc

When we compare to a single unit quantity we call it a Unit Rate.

Often the second quantity is time (per second, per hour, etc) but it can be anything.

Can be in the style "this

**per**that" or as a single number calculated using division.Example: Sam makes 3 pancakes every 6 minutes, that is a rate of:

• 3 pancakes per 6 minutes

• 0.5 pancakes per minute

• 30 pancakes per hour

• an hourly rate of 30

• etc

Example: 200 sausages were eaten by 50 people. that is:

• 200 sausages per 50 people

• 100 sausages per 25 people

• 4 sausages per person

• etc

Example: Alex invested $100 for a month and made $3

• the interest rate is 3/100 = 3% per month

• etc

When we compare to a single unit quantity we call it a Unit Rate.

See: Unit Rate

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