Ratios Rates Percentages Reviews

William purchased some pillows for $36. They were 25% off. What was the original price of the pillows?

• $48

• $46

• $9

• $44

75% of the students who auditioned for the school talent show made it. There are 84 students in the talent show. How many students auditioned?

• 108

• 112

• 120

• 114

Emily's cookie recipe calls for 3 cups of flour and 1 cup of sugar. What is the ratio of flour to sugar?

• 2:1

• 3:1

• 1:2

• 3:2

Martha ran a 5 kilometer race in 22.5 minutes . What is Martha's unit rate?

• 5.5 minutes/1 kilometer

• 4.5 minutes/1 kilometer

• 4 minutes/1 kilometer

• 4.5 minutes/1 kilometer

What is a Ratio?

• Is a comparison of two quantities 

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one 

• Two decimals that can be multiplied

Kelly has 10 apps on her iPad.
5 are school apps, 2 are music apps, and 3 are games.
What is the ratio of school apps to game apps?

• 5 to 2

• 3 to 5

• 5 to 10

• 5 to 3

What mathematical operation do ratios involve?

• addition

• subtraction

• multiplication

• division

Which of the following expresses a ratio?

• 2/3

• two-thirds

• 0.667

• 2.3

Simplify the ratio of
35 : 14

• 5 : 2

• 2 : 5

• 3 : 1

• 35: 14

Mr. Wright has 7 boys and 9 girls. What is the ratio of girls to boys?

• 7 to 9

• 9 to 7