Review Ratios and Proportions

Find the Unit Rate.
405 rotations in 5 minutes   

• 81 rotations per minute

• 73 rotations per minute

• 18 rotations per minute

• 810 rotations in 10 minutes

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

A scale drawing of a billboard uses the scale 4 cm:9 ft. The length of the billboard in the drawing is 11 cm. How long is the actual billboard?

• 13 ft

• 20.75 ft

• 24.75 ft

• 22 ft

Find the Unit Rate.
405 rotations in 5 minutes    

• 81 rotations per minute

• 73 rotations per minute

• 18 rotations per minute

• 810 rotations in 10 minutes

Which is NOT equivalent to 3:5?

• 15:25

• 9:15

• 21:28

• 30:50

Q1. How many players are there in a football team?

• A) 9 players per team

• B) 12 players per team

• C) 10 players per team

• D) 11 players per team

What is the constant of proportionality for this table?

• 1/9

• 9

• 8

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Write an equation for this relationship.

• y=1/5x

• y=1/2x

• y=2x

• y=5x