Proportions and Percents

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

• x = 10
• x = 20
• x = 40
• x = 2

Tags

CCSS.7.RP.A.2C

What is 70% of 200?

• 70
• 140
• 210
• 125

Tags

CCSS.6.RP.A.3C

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

• Yes
• NO

Tags

CCSS.6.RP.A.3A

Mike can do 7 push-ups every 15 seconds.  How long would it take him to do 42 push-ups?

• 90 seconds
• 21 seconds
• 6 seconds
• 2 hours

Tags

CCSS.6.RP.A.3B

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

Tags

CCSS.6.RP.A.3C

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

Tags

CCSS.6.RP.A.3C

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

Tags

CCSS.6.RP.A.3C

Which of these ratios is proportional to 2:3?

• 4:5
• 10:18
• 10:15
• 1:2

Tags

CCSS.7.RP.A.2A