Unit 4 Pre-Assessment

Front

What is a ratio?

Back

A ratio is a relationship between two numbers that shows how many times the first number contains the second. It can be expressed in different forms such as a fraction, with a colon, or with the word 'to'. For example, a ratio of 3 to 5 can be written as 3:5 or 3/5.

Front

How do you find the equivalent ratio?

Back

To find an equivalent ratio, you can multiply or divide both terms of the ratio by the same non-zero number. For example, the ratio 2:3 can be made equivalent by multiplying both terms by 2, resulting in 4:6.

Front

What is the ratio of red paint to yellow paint if the ratio is 3 oz to 5 oz?

Back

The ratio of red paint to yellow paint is 3:5.

Front

If Kevin mixes 9 oz of red paint, how much yellow paint should he mix?

Back

If the ratio of red to yellow is 3:5, then for 9 oz of red paint, he should mix 15 oz of yellow paint.

Front

What is the ratio of players to coaches if there are 10 players and 3 coaches?

Back

The ratio of players to coaches is 10:3.

Front

How do you write the ratio of girls to boys if there are 5 boys and 7 girls?

Back

The ratio of girls to boys is 7:5.

Front

What is the total number of toy cars Patrick has if he has 2 black, 3 red, and 5 white toy cars?

Back

Patrick has a total of 10 toy cars (2 + 3 + 5 = 10).

Front

What is the ratio of red toy cars to all toy cars if Patrick has 3 red toy cars?

Back

The ratio of red toy cars to all toy cars is 3:10.

Front

How do you simplify the ratio 6:9?

Back

To simplify the ratio 6:9, divide both terms by their greatest common divisor, which is 3. This results in the simplified ratio of 2:3.

Front

What does it mean if a ratio is expressed as 1:4?

Back

A ratio of 1:4 means that for every 1 part of the first quantity, there are 4 parts of the second quantity.