TEST: Ratios & Proportions

Front

What is a ratio?

Back

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

Front

How do you write a ratio?

Back

Ratios can be written in three ways: using a colon (e.g., 2:3), as a fraction (e.g., 2/3), or with the word 'to' (e.g., 2 to 3).

Front

What is the ratio of red marbles to yellow marbles if there are 2 red and 5 yellow?

Back

The ratio of red to yellow marbles is 2 to 5.

Front

If one pizza feeds 3 people, how many pizzas are needed for 36 people?

Back

You will need 12 pizzas.

Front

What is the total number of animals if there are 4 birds and 6 snakes?

Back

The total number of animals is 10.

Front

What is the ratio of birds to total animals if there are 4 birds and 6 snakes?

Back

The ratio of birds to total animals is 4/10.

Front

How do you solve for x in the equation x + 2 = 8?

Back

To solve for x, subtract 2 from both sides: x = 6.

Front

What is the ratio of pears to all fruit if there are 5 pears, 4 apples, and 2 bananas?

Back

The ratio of pears to all fruit is 5:11.

Front

What does it mean if two ratios are equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities.

Front

How can you simplify the ratio 8:12?

Back

You can simplify the ratio 8:12 to 2:3 by dividing both sides by 4.