Ratios Proportions and Percents

Applying ratios and proportions in real-life scenarios: A map scale is 1 inch represents 10 miles. If two cities are 3.5 inches apart on the map, how far are they from each other in real life?

• 20 miles

• 35 miles

• 100 miles

• 3.5 miles

Solving ratio problem: If a car travels 240 miles in 4 hours, what is the ratio of miles to hours?

• 120 miles/hour

• 40 miles/hour

• 80 miles/hour

• 60 miles/hour

Calculating percentages: What is 20% of 150?

• 30

• 25

• 50

• 40

Find the missing number in the proportion.
14/x = 7/20

• x = 10

• x = 20

• x = 40

• x = 2

What is 70% of 200?

• 70

• 140

• 210

• 125

Are these two ratios proportional?
5/7 and 8/10

• Yes

• NO

90% of the students in Ms. Cobb's class are earning an A in her class.  If there are 20 students in her class, how many students are earning an A?

• 2 students

• 18 students

• 20 students

• 15 students

30% of the people in the cafeteria ordered pizza.  If there are 120 people in the cafeteria, how many people DID NOT order pizza?

• 36 people

• 112 people

• 84 people

• 34 people

Mr. Boyle replaced 25% of the boards on his wooden deck.  If he replaced 19 boards, how many boards does his deck contain in total?

• 49 boards

• 19 boards

• 25 boards

• 76 boards

Which of these ratios is proportional to 2:3?

• 4:5

• 10:18

• 10:15

• 1:2