Chapter 2 Test REVIEW

A package of 3 pairs of insulated gloves costs ​$6.72. What is the unit price of the pairs of gloves​?

• 2.24

• 3.15

• 3.36

• 2.59

What is the unit rate for meters per second if a car travels 408 meters in 17​ seconds?

• 46 meters per second

• 24 meters per second

• 0.042 meters per second

• 0.038 meters per second

An airplane on autopilot took 5 hours to travel​ 2,475 kilometers. What is the unit rate for kilometers per​ hour?

• 950 kilometers per hour

• 1495 kilometers per hour

• 595 kilometers per hour

• 495 kilometers per hour

A bicyclist rides 1/5 mile in 1/60 hour. Write this rate as a unit rate.

• 12 miles per hour

• 16 miles per hour

• 24 miles per hour

• 6 miles per hour

Write this rate as a unit rate.  $\frac{\frac{1}{7}inches}{\frac{1}{21}\min utes}$  

• 2 inches per minute

• 3 inches per minute

• 4 inches per minute

• 5 inches per minute

The equation below describes a proportional relationship between x and y. What is the constant of proportionality?

y=1/7x

• k = 1/7

• k = 4

• k = 2

• k = 1/3

The equation below describes a proportional relationship between x and y. What is the constant of​ proportionality?

y = 3.37x

• 3.37

• y

• 2.5

• x

Identify the constant of proportionality of total weight to number of eggs.

The weight of 6 eggs is 360 g.

• 30 grams per egg

• 10 grams per egg

• 60 grams per egg

• 90 grams per egg

Which of the following graphs shows a proportional​ relationship?

• A

• B

• C

The graph shows a proportional relationship between time and number of boxes a machine packages. How many boxes does the machine package in 2 minutes?

• 2 boxes

• 60 boxes

• 120 boxes

• 180 boxes