Ratios, Unit rates, percents

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Tags

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 quantity of one item by the quantity of another item, typically expressed as 'per one' (e.g., miles per hour).

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100, denoted by the symbol '%'. For example, 25% means 25 out of 100.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and then multiply by 100.

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between two quantities, even if the numbers are different (e.g., 1:2 is equivalent to 2:4).

Tags

CCSS.6.RP.A.3A

Front

If a car travels 50 miles in 40 minutes, how many miles does it travel per minute?

Back

1.25 miles per minute.

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CCSS.6.RP.A.2

CCSS.6.RP.A.1

Front

What is the ratio of red marbles to yellow marbles if there are 2 red and 5 yellow?

Back

The ratio of red to yellow marbles is 2:5.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find 30% of a number?

Back

To find 30% of a number, multiply the number by 0.30 (or 30/100).

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CCSS.6.RP.A.3C

Front

What is the unit rate of 5 miles in 32 minutes?

Back

The unit rate is approximately 0.156 miles per minute.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you simplify the ratio 12:16?

Back

To simplify the ratio 12:16, divide both numbers by their greatest common divisor, which is 4, resulting in 3:4.

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CCSS.6.RP.A.2

CCSS.6.RP.A.1