Proportional Relationships, Determine Unit Rates, and Find Missing Values

A 14-pound bag of dog food costs $16.24, and a 30-pound bag of dog food costs $33.30. Which statement is true and can be used to determine the better buy?

• The unit rate per pound of a 14-pound bag is $0.05 less than the unit rate of a 30-pound bag.

• The unit rate per pound of a 14-pound bag is $0.05 more than the unit rate of a 30-pound bag.

• The unit rate per pound of a 14-pound bag is $0.50 less than the unit rate of a 30-pound bag.

• The unit rate per pound of a 14-pound bag is $0.50 more than the unit rate of a 30-pound bag.

Tags

CCSS.6.RP.A.3B

The graph below shows the amount of sugar required to make different-sized batches of cookies. Which statement is true about the graph of the line?

• The point (3, 2) lies on the graph and indicates that 24 cookies can be made from 3 cups of sugar.

• The point (4, 6) lies on the graph and indicates that 48 cookies can be made from 6 cups of sugar.

• The point (2, 3) lies on the graph and indicates that 36 cookies can be made from 2 cups of sugar.

• The point (6, 4) lies on the graph and indicates that 64 cookies can be made from 6 cups of sugar.

Tags

CCSS.7.RP.A.2D

The distances traveled by car A and car B after x hours are represented by the graph and table below.

• The speed of car A is twice the speed of car B.

• The speed of car B is twice the speed of car A.

• The speed of car A is 2.4 times the speed of car B.

• The speed of car B is 2.4 times the speed of car A.

Tags

CCSS.7.RP.A.2D

John paid $80 for 5 tickets at an amusement park. Each of the tickets cost the same price. Which equation represents the cost, C, for n tickets?

Tags

CCSS.7.RP.A.2C

Which table shows a proportional relationship between the distances on a map and the actual distances?

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Tags

CCSS.7.RP.A.2A

Which graph shows a proportional relationship between x and y?

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Tags

CCSS.7.RP.A.2D

Nicholas is typing a book report at an average speed of 30 words per minute. Which equation could Nicholas use to find t, the amount of time in minutes he will spend typing, if his report has w words?

• t = 30w

• w = 30t

• t = w + 30

• w = t + 30

Tags

CCSS.6.EE.C.9

The graph shows the cost of bananas at a supermarket based on the weight of the bananas in pounds.

• $0.40

• $0.50

• $2.00

• $2.50

Tags

CCSS.7.RP.A.2D

Look at the table. What is the missing value?

(a)  

Tags

CCSS.5.OA.B.3

What is the unit rate/constant of proportionality?

• 80 miles in 1 hours

• 20 miles in 1 hours

• 40 miles in 1 hours

• 160 miles in 1 hours

Tags

CCSS.7.RP.A.2D