Proportions

Proportions

​

Proportions

• a proportion is an equation that involves two ratios

• to solve a proportion you must cross multiply.

Example

• https://talkandcomment.com/p/2b948182298339db7ac0a6a8 (voice note)

• 
  

Multiple Choice

Find the solution. 

 $\frac{12}{x}=\frac{6}{20}$  

• 40

• 20

• 10

• 6

Example

• https://talkandcomment.com/p/56d3c0519b0b9282d1e1af2b (voice note)

Multiple Choice

 $\frac{x+4}{5}=\frac{6}{10}$  

• 10

• 1

• -1

• -10

Multiple Choice

 $\frac{8}{x-1}=\frac{1}{2}$  

• 2

• 8

• 15

• 17

Poll

How do you feel about solving proportions?

• Great, I would make a 100 on a quiz

• Good, I would pass a quiz

• Ok. I could use more practice

• Not good YET, I need more practice