Rates, Ratios, proportions and percents

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 express a ratio?

Back

Ratios can be expressed in three ways: using the word 'to' (e.g., 2 to 3), using a colon (e.g., 2:3), or as a fraction (e.g., 2/3).

Tags

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.

Tags

CCSS.7.RP.A.2A

Front

How do you convert a percent to a fraction?

Back

To convert a percent to a fraction, write the percent over 100 and simplify if possible.

Front

What is a percent?

Back

A percent is a ratio that compares a number to 100, often used to express how much of something there is.

Front

What does it mean for a table to be proportional?

Back

A table is proportional if the ratios of the corresponding values are constant.

Tags

CCSS.7.RP.A.2A

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total quantity by the number of units to find the amount per one unit.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If 5 oranges cost $2.50, what is the cost of one orange?

Back

The cost of one orange is $0.50.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, and they represent the same relationship between two quantities.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2