3.6 Proportions Day 1

What is a proportion?

• When two ratios can be simplified
• When two ratios are equivalent and show the same value
• When two ratios have the exact same numbers
• When two ratios can be multiplied by 2

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Do the following ratios form a proportion?

• Yes

• No

Tags

CCSS.7.RP.A.2A

Do the following ratios form a proportion?

• Yes

• No

Do the following ratios form a proportion?

• Yes

• No

Solve for x 

• x = 1/10
• x = 10
• x = 4
• x = 5

Tags

CCSS.7.RP.A.2C

Solve the proportion:

• 15
• 5
• 10
• 12

Tags

CCSS.7.RP.A.2B

 $\frac{x}{5}=\frac{8}{10}$  Solve the proportion.

• x=7

• x=4

• x=2

• x=3

 $\frac{3}{5}=\frac{12}{x}$   Solve the proportion.

• x = 8

• x = 20

• x = 4

• x = 5

Tags

CCSS.7.RP.A.2B

 $\frac{25}{1}=\frac{x}{3}$   Solve the proportion.

• x=75

• x=50

• x=27

• x=43

 

 $\frac{21}{x}=\frac{6}{8}$   Solve the proportion.

• x = 6

• x = 25

• x = 28

• x = 17