Proportions and Percents Final Review

Is a percent a proportion?

• Yes

• No

• Sometimes

• Never

• I don't know

How do you calculate whether 3/4 is in proportion to 6/8?

• Divide four into 3

• Cross Multiply

• Multiply 6 x 8, and if it equals 4 it is in proportion

What is the ratio of red apples to green apples

• 7 apples to 3 green
• 4 red apples to 7 apples
• 4 red apples to 3 green apples
• 3 green apples to 4 red apples

Which represents the relationship of oranges to fruit?

• 2:6
• 2:4
• 4:6
• 4:2

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

Kelly ate 3 apples. This represents 50% of the bag of apples. How many apples were originally in the bag?

• 3

• 4

• 5

• 6

The ratio of boys to girls in Mr. Baker's social studies class is 2 to 3. If there are 30 total students in class, how many more girls are in the class than boys.

• 6

• 8

• 10

• 12

Kenton completed 30% of the 90-page reading assignment. How many pages did he read?

• 24

• 27

• 30

• 33

The ratio of blue marbles to white marbles in Simon's bag is equal to 1 to 2. If there are 20 blue marbles, how many white marbles are there?

• 20

• 30

• 40

• 50

What is 40% of 120?

• 32

• 40

• 48

• 60