6.1 & 6.12 Ratios, Rates, & Proportions

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.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

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

Back

7 to 5

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What does it mean for two ratios to be equivalent?

Back

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

Tags

CCSS.6.RP.A.3A

Front

Which ratio is equivalent to 3:4?

Back

6:8

Tags

CCSS.6.RP.A.3A

Front

How do you find the total number of items in a ratio?

Back

Add the parts of the ratio together. For example, in the ratio 3:2:5, the total is 3 + 2 + 5 = 10.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If you need 2 tablets of iodine for 1 quart of water, how many tablets do you need for 4 quarts?

Back

8 tablets

Tags

CCSS.6.RP.A.3B

Front

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

Back

2 to 5

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you simplify the ratio 12:16?

Back

Divide both sides by their greatest common divisor, which is 4. So, 12:16 simplifies to 3:4.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

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

Back

3 to 10

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

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

2 to 3

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2