Rates and Unit Rates

Front

What is a rate?

Back

A rate is a ratio that compares two different quantities, often with different units, such as miles per hour or cost per item.

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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 second quantity is one unit. For example, if you pay $3 for 1 apple, the unit rate is $3 per apple.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate the unit rate from a total cost?

Back

To find the unit rate, divide the total cost by the number of units. For example, if 5 pounds of meat cost $5.50, the unit rate is $5.50 ÷ 5 = $1.10 per pound.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What are equivalent ratios?

Back

Equivalent ratios are two or more ratios that express the same relationship between quantities. For example, 1:2 and 2:4 are equivalent ratios.

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CCSS.6.RP.A.3A

Front

How can you find equivalent ratios?

Back

You can find equivalent ratios by multiplying or dividing both terms of a ratio by the same number.

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CCSS.6.RP.A.3A

Front

What is the relationship between rates and ratios?

Back

Rates are a specific type of ratio that compares two quantities with different units, while ratios can compare any two quantities.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If 6 cans of soda cost $2.40, what is the cost of 1 can?

Back

$0.40 per can.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If 5 ounces of yogurt cost $2.50, what is the cost of 1 ounce?

Back

$0.50 per ounce.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the formula to find the unit rate?

Back

Unit Rate = Total Cost ÷ Number of Units.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a practical example of using unit rates in daily life?

Back

Comparing prices of different brands of cereal to find the best deal per ounce.

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CCSS.6.RP.A.3B