Proportional Relationships Ratios

Does this table show a proportional or non proportional relationship?

• Proportional

• Non Proportional

True or False: This equation is a proportion because it has two equivalent ratios separated by an equal sign.

• True

• False

Is the relationship proportional?

• Yes

• No

Which statement best describes the relationship between dogs and paws in the table?

• Proportional

• Not Proportional

The amount of eggs and the cups of cream needed to make egg nog have a proportional relationship. Complete the table.

• 5/1 & 5/1

• 10/2 & 25/5

• 1/5 & 1/5

• 2/10 & 5/25

Two quantities are ​ (a)   if the ratios comparing them are equivalent.

• proportional

• nonproportional

• constant of proportionality

• proportion

Two quantities are in a ​ (a)   if the two quantities vary and have a constant ratio between them.

• proportional relationship

• proportional

• unit rate

• nonproportional

• constant of proportionality

An elevator moves at a constant rate of 18 feet in 3 seconds. A second elevator moves at a constant rate of 40 feet in 5 seconds.

The situation ​ ​ (a)   a proportional relationship because ​ (b)  

• does not represent

• the ratios are different

• represents

• the ratios are equivalent

Write how to find the proportion of

2:8 :: 25:625

(Do not give space first right the means than the extremes.)

Mathematical Equivalence

ON

A restaurant orders corn tortillas and flour tortillas. The ratio of the number of corn tortillas to the number of flour tortillas is 2 : 3. What is the ratio of the number of flour tortillas to the total number of tortillas?

• 3 : 8

• 3 : 5

• 2 : 8

• 2 : 5