Proportions in Algebra

Solve for k

• 165

• 17

• 1/17

• 1/165

Solve for b 

• b = 8

• b = 17/12

• b = 4/3

• b = 1/8

Solve:

• 6

• 7

• -8

• -5

To solve for missing info in a proportion statement you must first

• Cross multiply

• Divide everything

• Get rid of variables

• Guess

A proportion is a

• ratio statement

• an "if-then" statement

• a statement of 2 ratios

• a comparison

Solve for x

• x=6

• x =1/6

• x = 7

• x=9

Solve for x 

• x = 1/10

• x = 10

• x = 4

• x = 5

Solve the proportion:

• 4

• 8

• 14

• 10

Do the ratios form a proportion?

• Yes, they form a proportion.

• No, they do not form a proportion.

Do the ratios form a proportion?

• Yes, they form a proportion.

• No, they do not form a proportion.