7th Grade Math Ratios 7.RP.1, 7.RP.2, 7.RP.3, 7.GM.1 9/23/29

Front

What is a ratio?

Back

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

Front

What is a unit rate?

Back

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

Front

How do you find the unit rate from a fraction?

Back

To find the unit rate from a fraction, divide the numerator by the denominator and express it in terms of one unit.

Front

What is a percentage?

Back

A percentage is a fraction expressed as a part of 100, used to compare relative sizes.

Front

How do you calculate a percentage discount?

Back

To calculate a percentage discount, multiply the original price by the discount percentage and subtract that amount from the original price.

Front

What is the formula for calculating percent change?

Back

Percent change = (New Value - Old Value) / Old Value × 100.

Front

What does a 14% increase mean?

Back

A 14% increase means the new value is 14% more than the original value.

Front

How do you convert miles per hour to a unit rate?

Back

To convert miles per hour to a unit rate, divide the number of miles by the number of hours.

Front

What is the relationship between ratios and proportions?

Back

Ratios compare two quantities, while proportions state that two ratios are equal.

Front

How do you solve for a missing value in a proportion?

Back

Cross-multiply the known values and then divide to find the missing value.