Proportions and unit rates

Front

What is a proportion?

Back

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

Front

How do you find a unit rate?

Back

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

Front

What is the formula for calculating the unit rate of a given quantity?

Back

Unit Rate = Total Quantity / Total Units.

Front

If a recipe requires 4 cups of flour for 2 loaves of bread, what is the unit rate of flour per loaf?

Back

2 cups of flour per loaf.

Front

How do you set up a proportion to solve for an unknown?

Back

Set up a proportion by creating a ratio from the known values and then cross-multiply to solve for the unknown.

Front

What is the relationship between ratios and proportions?

Back

Ratios compare two quantities, while proportions show that two ratios are equivalent.

Front

If a car travels 300 miles in 5 hours, what is the unit rate in miles per hour?

Back

60 miles per hour.

Front

How can you use proportions to solve real-world problems?

Back

Proportions can be used to compare quantities and find unknown values in various real-world contexts, such as cooking, travel, and finance.

Front

What is the unit rate of calories per ounce if a 12 oz can contains 170 calories?

Back

Approximately 14.17 calories per ounce.

Front

If you earn $120 for 10 hours of work, what is your hourly wage?

Back

$12 per hour.