Chapter 7 Review Ratios, Percent and Proportions

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

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

Josh bought a pizza with eight slices of pizza for $12. What is the cost of a slice of pizza?

• $12
• $1.50
• $3
• $1

26 is 5% of what number?

• 1.3
• 2.5
• 25.95
• 520

What is a Ratio?

• Is a comparison of two quantities 
• To multiply two fractions 
• A number over another number
• Two decimals that can be multiplied

What is the ratio to the picture shown, triangles to squares?

• 2:6
• 5:6
• 3:4
• 4:3

Solve the proportion.

• 1
• 3
• 6
• 5

How many ways can you write a ratio

• 1
• 3
• 2
• 4

do the ratios form a proportion?

• yes

• no

do the ratios form a proportion?

• yes

• no