Unit Rates and Ratios Flashcard

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.

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 'x per 1 unit'.

Front

How do you find a unit rate from a ratio?

Back

To find a unit rate, divide both quantities in the ratio by the second quantity.

Front

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

Back

The unit rate is 1.5 cups of flour per cup of sugar.

Front

What is the scale factor in a model?

Back

The scale factor is the ratio of the dimensions of the model to the dimensions of the actual object.

Front

How do you calculate speed?

Back

Speed is calculated by dividing the distance traveled by the time taken, expressed as speed = distance/time.

Front

If a car travels 180 miles in 3 hours, what is its speed?

Back

The speed is 60 miles per hour.

Front

What is the relationship between distance, speed, and time?

Back

Distance = Speed × Time.

Front

How many quarts are in 5 gallons?

Back

There are 20 quarts in 5 gallons.

Front

What is the formula to convert gallons to quarts?

Back

To convert gallons to quarts, multiply the number of gallons by 4.