Compare Ratios Proportional

Janet used 155 beads to create 5 necklaces.  What is the constant of proportionality?  (How many beads did she use to make each necklace?)

• 31

• 51

• 33

Does this graph show a proportional relationship?

• yes

• no

• you cannot tell

The constant of proportionality for the graph above is 1.

• True

• False

20 pencils

24 pencils

96 pencils

48 pencils

• 20 pencils

• 24 pencils

• 96 pencils

• 48 pencils

Solve for A in the table.

• 40

• 10

• 9

• 45

Is the table proportional?

• Yes

• No

Does the table represent a proportional relationship?

• Yes.

• No.

What is a Ratio?

• Is a comparison of two quantities 

• To multiply two fractions 

• A number over another number

• Two decimals that can be multiplied

What does the ratio 8 : 23 compare?

• cats to turtles

• dogs to all animals

• dogs to cats

• turtles to all animals