Proportions, Ratios and Percents

What does the ratio 8 : 23 compare?

• cats to turtles

• dogs to all animals

• dogs to cats

• turtles to all animals

Which of the following describes a unit rate?

• 13 pounds per 12 inches

• 15 fish per 12 gallons

• 24 hours per day

• 55 miles in 3 hours

If you buy 20 apples for $10.00, how much is one apple?

• $1.00

• $5.00

• $0.10

• $0.50

Solve for A in the table.

• 40

• 10

• 9

• 45

Is the table proportional?

• Yes

• No

What is 50% of 15?

• 30
  

• 7.5

• 7

• 8.5

Mrs. Bennett has graded 20% of her 150 students’ papers. How many papers does she still need to finish grading?

• 30

• 750

• 45

• 120

To rewrite a percent as a fraction:  Rewrite the percent using ________ of 100.

• numerator

• denominator

• fraction

• 1

The ratio of band members to football players is 3 to 1. There are 144 band members at the school.

How many students are football players?

• 54

• 48

• 36

• 40

Given the original amount and the percent of change, find the new amount.

• 740

• 820

• 780

• 690