Proportional Relationships Unit Rate

A recipe calls for 2 tablespoons of flour for every tablespoon of sugar. Which table shows this relationship?

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The baseball team had 18 players. There were 4 coaches on the team. What is the ratio of players to coaches?

• 18 to 4

• 22 to 18

• 18 to 22

• 4 to 18

Which equation represents the proportional relationship shown in this chart?

The table of values below represents a proportional relationship. What is the value of the missing number?

• 8

• 10

• 14

• 122.5

The graph shows how the number of pages Jeff reads is related to the number of hours he spends reading. If Jeff continues to read at the same rate as shown in the graph, how many hours would it take him to read 90 pages?

• 20

• 6

• 4.5

• 1.5

Four customers at a gas station this morning each purchased the same type of gasoline. The table shows the amounts of gasoline they purchased and the costs. Using the data in the table, what is the constant of proportionality, r, that can be used to find the total cost, C, for n gallons of this type of gasoline?

• Amy would jog 1 mile farther than John.

• John would jog 1 mile farther than Amy. 

• Amy would jog 2 miles farther than John.

• John would jog 2 miles farther than Amy. 

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.

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

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