1D - Proportions

What is a proportion?

• An equation in which two ratios are set equal to each other

• An ordered pair of numbers a and b

• A number obtained by dividing one quantity by another

• A number expressed as a fraction

Tags

CCSS.7.RP.A.2

Solve for x

• x=6
• x =1/6
• x = 7
• x=9

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve for x 

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve for x 

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve for x 

• x = 6
• x = 25
• x = 28
• x = 17

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Which ratio is proportional to the ratio   1/5?

• 2/5
• 2/10
• 5/1
• 15/20

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Which ratio below is proportional to the ratio   5/6?

• 6/5
• 50/75
• 25/30
• 12/10

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Are these two ratios proportional?

• Yes, they are proportional.

• No, they are not proportional

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

Do the ratios form a proportion?

• Yes, they form a proportion.
• No, they do not form a proportion.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

CCSS.6.RP.A.1

CCSS.6.RP.A.3