Ratios

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

Give a real-life example of a ratio.

Back

4 meatballs : 1 cup of sauce.

Front

How do you write a ratio?

Back

Ratios can be written in three ways: using a colon (2:1), as a fraction (2/1), or with the word 'to' (2 to 1).

Front

What does it mean if two ratios are equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they simplify to the same fraction.

Front

Are the ratios 2:1 and 18:9 equivalent?

Back

Yes, they are equivalent because both simplify to 2:1.

Front

If 5 erasers cost 25 cents, how much do 10 erasers cost?

Back

50 cents.

Front

What is the ratio of 12 noodles to 4 meatballs?

Back

The ratio is 3:1.

Front

How can you represent a ratio graphically?

Back

You can represent a ratio using a graph by plotting ordered pairs that show the relationship between the two quantities.

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, such as miles per hour.

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.