Proportional Relationships Test

Noah's typing speed is represented by the equation y = 40x, where y is the number of words typed in x minutes. Emma's typing speed is represented by the graph. Who can type more words per minute?

• Noah

• Emma

Write an equation that matches Emma's typing speed.

Tags

CCSS.5.OA.B.3

The table below shows the relationship between the amount of dried fruit and the cost. What is the unit cost?

• $5.40

• $0.37

• $8.10

• $2.70

Tags

CCSS.6.RP.A.3B

Angelo and Ethan timed each other during swim practice. The speed at which Angelo swims is represented by the equation d=1.25t, where d is the number of meters he swims in t seconds. The speed at which Ethan swims is represented in the table.

Select all that are TRUE.

• Angelo’s rate of speed is 1.25 meters per second

• A graph of Angelo’s speed would have a unit rate of 1.3

• Ethan’s rate of speed is 0.05 meters per second faster than

  Angelo’s rate of speed.

• Ethan's speed can be represented by the equation x = 1.3y

Tags

CCSS.7.RP.A.2D

There are two short-term parking lots at the airport. The cost of parking in Lot A is represented by the equation

y = 4.3t, where y is the cost, in dollars, for parking x hours. The cost of parking in Lot B is represented in the table. Which statement correctly compared the parking rates for each lot?

• Lot A costs $4.20 less per hour than Lot B.

• Lot A costs $0.10 more per hour than Lot B.

• Lot B costs $0.05 less per hour than Lot A.

• Lot B costs $0.01 more per hour than Lot A.

Tags

CCSS.7.RP.A.2D

Write an equation to relate weight, x, to the price, y.

• y = 0.45x

• y = 0.22x

• y = 22x

• y = 45x

Tags

CCSS.7.RP.A.2C

In the equation y = 14x, what is the constant of proportionality?

• y
• x
• 14
• 1/14

Tags

CCSS.7.RP.A.2B

What does the point (2, 94) represent in this situation?

• Every week, they earn $94.

• After 94 weeks, they save $2.

• After 1 week, they save $47.

• After 2 weeks, they save $94.

Tags

CCSS.7.RP.A.2D

Identify the unit rate in the graph.

• 5 dollars per pencil

• 5 pencils per dollar

• 0.2 pencils per dollar

• 0.2 dollars per pencil

Tags

CCSS.7.RP.A.2D

At what rate did the rain fall?

• 2 cm per hour

• ¹/₄ cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

Tags

CCSS.8.EE.B.5