Math 7 - OUR Unit 2 Lessons 4-6 Study Guide

Math 7 - OUR Unit 2 Lessons 4-6 Study Guide

Multiple Choice

1.

• N = 4 x B

• B = 4 x N

• N = 3 x B

• B = 3 x N

Multiple Choice

2.

• b = 1/2 s

• b = 8s

• s = 1/8b

• s = 8b

Multiple Choice

3. The value of y is proportional to x. When x = 4, then y = 12. Write an equation to represent the relationship between x and y.

• y = 1/3x

• y = 3x

• y = 4x

• x = 12y

Multiple Choice

4. On a flight from Los Angeles to Chicago, an airplane travels at a constant speed. An equation relating the distance traveled in miles, d, to the number of hours flying, t, is 𝑡 = 1/ 440 𝑑. How long will it take the airplane to travel 1100 miles?

• 3 hours

• 3.5 hours

• 2 hours

• 2.5 hours

Multiple Choice

5. Each table represents a proportional relationship. For each, find the constant of proportionality and write an equation that represents the relationship.

• 3/2, y = 3/2x

• 2/3, y = 2/3x

• 3/2, x = 3/2y

• 2/3, x = 2/3y

Multiple Choice

5. Each table represents a proportional relationship. For each, find the constant of proportionality and write an equation that represents the relationship.

• 4/3, y = 4/3x

• 4/3, x = 4/3y

• 3/4, x = 3/4y

• 3/4, y = 3/4x

Multiple Choice

6. Concrete building blocks are 15 in tall each. Using b for the number of blocks and h for the height, write 2 equations that relate the 2 variables. One equation should begin with 𝑏 = and the other with ℎ =

• h = 1/15b, b = 15h

• h = 15b, b = 1/15h

Multiple Choice

7. Mario has some jars of marinara sauce that each hold 22 fluid ounces.

Write an equation that relates the number of jars, j, of marinara to the total volume, v. Equation:________________

• j = 22v

• v = 22j

• v = 1/22j

• j = 1/22v

Multiple Choice

7. Mario has some jars of marinara sauce that each hold 22 fluid ounces.

How much marinara sauce is in 12 jars?___________

• 1.83

• 12/22

• 220

• 264

Multiple Choice

7. Mario has some jars of marinara sauce that each hold 22 fluid ounces.

How much marinara sauce is in 31 jars?___________

• 682

• 1.409

• 660

• .709

Multiple Choice

7. Mario has some jars of marinara sauce that each hold 22 fluid ounces.

How many jars does it take to hold 154 fluid ounces of marinara? ___________

• 10 jars

• 7 jars

• 12 jars

• 10 jars

Multiple Choice

8. Bill is taking a 330 mile trip by car. If he drives for 3 hours with an average speed of 65 miles per hour, how many miles will he still need to drive to complete his trip?

• 21450

• 110

• 135

• 195

Multiple Choice

9. It took Melanie 1/3 of an hour to ride her bike 2_3/4 of a mile. How many miles per hour can Melanie ride her bike?

• 2_3/4 mph

• 8.25 mph

• .916 mph

Multiple Choice

10.

• 1_1/30 mph

• 2_1/7 mph

• 3_1/13 mph

• 6_3/10 mph

Multiple Choice

11. The Contreras family drove 525 miles from San Diego to Sacramento at an average rate of 50 miles per hour. How many hours did this trip take?

• 10 hours

• 10.5 hours

• 9 hours

• 26250 hours

Multiple Choice

12.Find the reciprocal to make each equation true.

1/2 x _____ = 1

• 1/2

• 2/4

• 1/3

• 2

Multiple Choice

13.Find the reciprocal to make each equation true.

10 x ___ = 1

• 1/10

• 10

• 10/1

• 20

Multiple Choice

14.Find the reciprocal to make each equation true.

2/3 x ____ = 1

• 1_2/3

• 3/2

• 2/3

• 1_3/2

Multiple Choice

15.For each table below, find the constant of proportionality.

• 2

• 1/2

• 30/15

Multiple Choice

16.For each table below, find the constant of proportionality.

• 5

• 1/5

• 40/200

• 75/375

Multiple Choice

17.For each table below, find the constant of proportionality.

• 18/6

• 24/8

• 3

• 1/3

Multiple Choice

18.For each table below, find the constant of proportionality.

• 12/96

• 23/184

• 8

• 1/8