Ratios, Unit Rate, Double Number Line Percents intro

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What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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What is a unit rate?

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A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a car travels 150 miles in 3 hours, what is the unit rate in miles per hour?

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50 miles per hour.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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What is a double number line?

Back

A double number line is a visual representation that shows two related quantities along two parallel lines.

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How do you find a missing value on a double number line?

Back

Use the known values to establish a ratio and apply it to find the missing value.

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What is the simplest form of a ratio?

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The simplest form of a ratio is when the two numbers are reduced to their smallest whole number values.

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CCSS.6.RP.A.3A

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In a fruit basket with 5 apples, 7 pears, and 10 bananas, what is the ratio of bananas to total fruit in simplest form?

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5:11.

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CCSS.6.RP.A.1

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If Marsha can run 25 meters in 10 seconds, how far can she run in 1 second?

Back

2.5 meters.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the purpose of a ratio table?

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A ratio table helps to organize and find equivalent ratios.