6th: Solving Proportions (9.3)

How would you write the proportion for: 2 is to 10 as 8 is to x.

• $\frac{2}{8}=\frac{x}{10}$

• $\frac{2}{10}=\frac{8}{x}$

• $\frac{10}{2}=\frac{8}{x}$

Tags

CCSS.7.RP.A.2A

How could I use equivalent ratios to solve: $\frac{8}{9}=\frac{m}{45}$   Select all that apply to the process of trying to solve. 

• Multiply 8 times 5

• 40

• Divide 45 by 9

How could I use equivalent ratios to solve: $\frac{x}{6}=\frac{4}{24}$   Select all that apply to the process of trying to solve. 

• 1

• Divide 24 by 6

• Multiply 1 by 4

Solve using equivalent ratios: $\frac{8}{9}=\frac{m}{45}$   

• 45

• 40

• 5

Solve using equivalent ratios: $\frac{x}{6}=\frac{4}{24}$   

• 4

• 6

• 1

What is the name of the skill for solving proportions algebraically?

• Division

• Cross Division

• Cross product multiplication

• Multiplication

Tags

CCSS.7.EE.B.3

Use algebra to solve: $\frac{10}{15}=\frac{c}{27}$   

• 9

• 18

• 54

Tags

CCSS.7.RP.A.2B

Use algebra to solve: $\frac{3}{x}=\frac{3}{29}$   

• 29

• 1

• 3

Tags

CCSS.7.RP.A.3

Solve using Algebra: $\frac{x}{13}=\frac{24}{52}$   

• 16

• 4

• 6

3 out of 8 scouts were able to lead a day hike. If 21 scouts were able to lead a day hike, how many scouts were hiking?

• 7 scouts

• 56 scouts

• 24 scouts

Tags

CCSS.6.RP.A.3B