Ratios, Proportions, and Percents

Is the graph proportional or non-proportional?

• Proportional
• Non-Proportional

Why does this graph show a non-proportional relationship?

• Because it is proportional
• It goes through the origin
• It does not go through the origin
• It is a straight line

Tags

CCSS.7.RP.A.2D

Which graph is proportional?

• A
• B
• C and D
• All of the graphs are proportional

Tags

CCSS.7.RP.A.2D

Do the ratios form a proportion?

• Yes, they form a proportion.
• No, they do not form a proportion.

Tags

CCSS.6.RP.A.3A

Do the ratios form a proportion?

• Yes, they form a proportion.
• No, they do not form a proportion.

Tags

CCSS.6.RP.A.3A

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

Tags

CCSS.7.RP.A.2B

Pat needs 14 sticks of pepperoni to make 28 pizzas.  How many sticks of pepperoni are needed to make 36 pizzas?  

• 15 pizzas
• 252 sticks
• 18 sticks
• 18 pizzas

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

In an animal shelter, the ratio of dogs to cats is 5 to 3. There are 25 dogs.  Write and solve a proportion to find the number c of cats.

• c=15
• c=18
• c=21
• c=16

Tags

CCSS.7.RP.A.3

What percent of 50 is 20?

• 40%
• 25%
• 2.5%
• 4%

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

What is 40% of 230?

• 92
• 9200
• 9.20
• 575

Tags

CCSS.6.RP.A.3C