Rates and Unit Rate

Front

What is a rate?

Back

A rate is a ratio that compares two different quantities, typically expressed as a quantity per unit of another quantity.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a unit rate?

Back

A unit rate is a rate in which the denominator is 1, allowing for easy comparison of different rates.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the numerator by the denominator to find the amount per one unit of the denominator.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a car travels 130 miles in 2 hours, what is its speed in miles per hour?

Back

65 miles per hour.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you determine the better buy between two products?

Back

Calculate the unit price for each product and compare them; the lower unit price indicates the better buy.

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CCSS.6.RP.A.3B

Front

What is the unit cost of an item?

Back

The unit cost is the total cost divided by the number of items purchased.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If you buy 15 pizzas for $97.50, what is the unit cost per pizza?

Back

$6.50 per pizza.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How many customers can a cashier serve in a given time if they serve 2 customers in 8 minutes?

Back

To find the number of customers served in 30 minutes, set up a proportion based on the rate.

Tags

CCSS.6.RP.A.3B

Front

What is the formula to find the total number of customers served based on time?

Back

Total customers = (Number of customers served / Time taken) * Total time.

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CCSS.6.RP.A.3B

Front

If a 12-pack of soda costs $3.50, what is the unit price per can?

Back

$0.29 per can (3.50 / 12).

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2