6.1 & 6.12 Ratios, Rates, & Proportions

Front

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.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

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

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as speed (miles per hour) or price per item.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

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CCSS.7.RP.A.2A

Front

How do you find an equivalent ratio?

Back

To find an equivalent ratio, multiply or divide both terms of the ratio by the same non-zero number.

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CCSS.6.RP.A.3A

Front

If 2 tablets disinfect 1 quart of water, how many tablets are needed for 3 quarts?

Back

6 tablets.

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CCSS.6.RP.A.3B

Front

What is the formula to find a missing value in a proportion?

Back

If a:b = c:d, then ad = bc.

Front

Which of the following ratios are equivalent to 4:5? 8:10, 12:15, 16:20, 5:4

Back

5:4 is NOT equivalent.

Tags

CCSS.6.RP.A.3A

Front

How do you convert a ratio to a percentage?

Back

To convert a ratio to a percentage, divide the first number by the second number and multiply by 100.

Front

What is the unit rate of 60 miles in 2 hours?

Back

30 miles per hour.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2