Ratio and Proportional Relationship

In the table, the ratio of y to x is constant.

What is the value of the missing number?

• 15

• 20

• 25

• 30

There are 4 trucks for every 5 cars in a parking lot. How many trucks and cars could be in the parking lot?

• 64 trucks and 80 cars

• 72 trucks and 73 cars

• 84 trucks and 100 cars

• 96 trucks and 110 cars

Seventy-five 6th-grade students chose to watch a movie on the last day of school. This is 25% of the 6th-grade class. How many total students are in the 6th grade?

• 100

• 200

• 300

• 400

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

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

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

The cost of 54 tickets to a water park is $972. Each ticket costs the same amount.

Which table or equation represents the relationship between the number of tickets, t, and the total cost of the tickets, c?

Select TWO correct answers.

Tags

6.6.C

A family makes homemade pickles. They pick the pickles at a rate of 80 pickles per 5 jars. Which answer choices best represent packing y pickles in x jars at that rate? Select TWO correct answers.

Answer the following questions.

c

d

g

i

f

y = 1500x

10

4500

yes

100

10,500

y=10x

y=4500x

no

1,500

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

• proportional

• nonproportional

• constant of proportionality

• proportion