Ratios, Unit Rate, Better Buy Review

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

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common factor (GCF).

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 (e.g., miles per hour).

Front

How do you find the unit rate from a total cost and quantity?

Back

Front

What is the formula to convert inches to centimeters?

Back

To convert inches to centimeters, multiply the number of inches by 2.54.

Front

If Jake is 54 inches tall, how tall is he in centimeters?

Back

Front

What is a double number line?

Back

A double number line is a visual representation that shows two related quantities along two parallel lines, helping to illustrate ratios and relationships.

Front

How do you determine the next values on a double number line?

Back

To determine the next values, maintain the same ratio between the two quantities and extend the pattern.

Front

What does 'better buy' mean?

Back

'Better buy' refers to comparing prices of similar items to determine which offers more value for the same quantity.

Front

How do you calculate which item is a better buy?

Back

To find the better buy, calculate the unit price for each item and compare them. The item with the lower unit price is the better buy.