Ratios and Proportions (Warm up 3/2-M1)

What is a Ratio?

• Is a comparison of two quantities 
• To multiply two fractions 
• A number over another number
• Two decimals that can be multiplied

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Which of these ratios is equivalent to 3/4?

• 12/9

• 9/20

• 9/12

• 803/804

Solve the proportion:

• 4
• 8
• 14
• 10

Tags

CCSS.7.RP.A.2B

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

Tags

CCSS.7.RP.A.2B

Solve for x

• x=6.5
• x=8
• x=4
• x=5.5

Tags

CCSS.7.EE.B.4A

Which proportion is true?

• 3/5 = 5/7

• 9/12 = 3/4

• 2/9 = 6/18

• 2/5 = 5/10

Solve for x

• x=1
• x=3
• x=3/5
• x=2

Tags

CCSS.8.EE.C.7B

A class has 30 students. 18 are boys. What is the ratio of boys to girls?

• 12:18
• 3:2
• 30:18
• 18:7

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2 to 5
• 5 to 3
• 3 to 5
• 5 to 2

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

• x = 1/24
• x = 29
• x = 28
• x = 3/2