Ratios and Proportional Relationships

A festival lists prices according to the number of game tickets. What is the constant of proportionality? Express your answer as a decimal.

Tags

CCSS.7.RP.A.2B

There is a proportional relationship between c and d. When c is 4, d is 10. When c is 6, d is 15. What is the constant of proportionality? Express your answer as a decimal.

Tags

CCSS.7.RP.A.2B

Each box contains the same number of folders. The graph shows the total number of folders relative to the number of boxes. How many boxes are needed to hold 500 folders?

Tags

CCSS.7.RP.A.2D

At a carnival game, 22% of the players win a prize. What is the ratio of prize winners to players who do NOT win a prize?

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

The graph shows the number of rabbits in a population over a number of years. Is the number of rabbits proportional to the number of years? Select the correct answer and explanation.

• No; the graph is not a straight line that passes through the origin.

• Yes; the graph is a straight line that passes through the origin.

• Yes; all the ratios rabbits/years are equivalent.

• Not enough information is given.

Answer explanation

No; the graph is not a straight line that passes through the origin.

Tags

CCSS.7.RP.A.2D

The total cost of bowling is proportional to the number of games played. This relationship can be modeled by the equation y = 3.25x. Select all of the tables that represent this relationship.

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Tags

CCSS.7.RP.A.2C

Mrs. Lorenzo is able to type 325 words in 5 minutes. The equation y = 65x represents this proportional relationship. Select the correct description of the relationship.

• Mrs. Lorenzo types 325 words per minute.

• Mrs. Lorenzo types 5 words per minute.

• Mrs. Lorenzo types 65 words per minute.

• Not enough information is given.

Tags

CCSS.7.RP.A.2C

Julio earns $8.75 per hour working at a swim club. Kendall mows lawns and earns $28 per lawn. Last week, Julio worked 18 hours and Kendall mowed 6 lawns. How much more did Kendall earn than Julio, in dollars?

Tags

CCSS.7.EE.B.3

• y = 1/5x

• y = 5x

• y = 1/2x

Tags

CCSS.8.EE.B.5

Select all graphs that represent proportional relationships.

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Tags

CCSS.7.RP.A.2D