1. 2. 3. 4. 5. 1. 2/5 2. 5/7 3. 5/2 4. 2/3 1. $0.75 2. $1.25 3. $1.33 4. $3.50.

Unit 4 Test 1

RatesRatios

Proportions

Please select a Team.

1 2 3 4 5

18%15%

24%

36%

6%

1. Beast2. Belle3. Chip & Mrs.

Potts4. Cogsworth5. Lumiere

1.

2.

3.

4.

5.

In a recent survey, students preferred gym class to art class by a ratio of 5 to 2. What fraction of students in the survey prefer gym class over art class?

1 2 3 4

3% 3%

58%

36%

1. 2/52. 5/73. 5/24. 2/3

1 2 3 4

6%0%

94%

0%

At Big Bruno’s Deli, you can get 6 sandwiches for $8.00. What is the cost of each individual sandwich?

1. $0.752. $1.253. $1.334. $3.50

Sarah rides her bike 10.5 miles in 3.5 hours. What is her unit rate?

1 2 3

3%

91%

6%

1. 2.33 miles per hour

2. 0.333 miles per hour

3. 3 miles per hour

Carlos walked 15 miles in 3.5 hours. Melody walked 13 miles in 3 hours. Who walked faster?

1 2

39%

61%1. Melody2. Carlos

Which of the following statements is not true?

1 2 3

6%15%

79%

1. The slope is the unit rate.

2. The slope is the change in x divided by the change in y.

3. The unit rate is the constant of proportionality.

Team Scores3.99 Cogsworth

3.83 Beast

3.4 Belle

3.25 Lumiere

2.5 Chip & Mrs. Potts

Which equation represents a proportional relationship?

1 2 3 4

97%

3%0%0%

1. y = 6x2. y = 2x – 53. y = 6 + x4. y = (-3)x + 5

What is the constant of proportionality?

1 2 3 4

3%

85%

9%3%

1. 2400 wpm2. 1600 wpm3. 800 wpm4. 40 wpm

Solve for n.

1 2 3 4

0% 0%0%

100%1. 42. 123. 1924. 16

Team Scores6.91 Cogsworth

6.67 Beast

6.2 Belle

5.88 Lumiere

5.5 Chip & Mrs. Potts

What percentage of your current points would you like to wager on the next question?

1. 0%2. 25%3. 50%4. 75%5. 100%

The equation y = 2.8x represents the total price of gasoline purchased for x gallons. If this equation were graphed on a coordinate plane then what would the point (6, 16.80) represent?

1 2 3

3%12%

85%1. The constant of proportionality is $6.

2. 6 gallons cost $16.80.

3. 16.80 gallons cost $6.

Team Scores13.46 Beast

12.41 Cogsworth

11.5 Chip & Mrs. Potts

8.5 Lumiere

7.4 Belle

Jenny babysits her nephews and she is paid hourly. Write an equation Jenny can use to determine her total earnings babysitting.

1 2 3 4

0% 3%0%

97%Time4 3 4 5 6

Total $25.50 $34 $42.50 51

1. Y = $25.50x2. Y = $8.50x3. Y = $25.50 + x4. Y = $8.50 + x

Solve for x.

1 2 3 4.

0% 0%0%

100%1. 122. 483. 5764. 0.3333

Which of the following represents a proportional relationship?

1 2 3 4

0% 0%

94%

6%

1.

2.

3.

4.

1. Picture Choice 12. Picture Choice 23. Picture Choice 34. Picture Choice 4

For which statement is the constant of proportionality equal to 9?

1 2 3 4

0% 0%

100%

0%

1. Betty lost 9 pounds in 9 weeks.2. Sara drove 720 miles in 8

hours.3. There are 90 boxes on 10

shelves.4. There are 900 people in 90

rows.

An airplane flies at a constant speed and travels a distance of 495 miles in 55 minutes. Which equation represents the given proportional relationship?

1 2 3 4

3%9%6%

82%1. Y = 55x2. Y = 9x3. X = 55y4. X = 9y

What does the point (1, r) represent?

1 2 3 4

0%

97%

3%0%

1. Unit rate2. Constant of

proportionality3. Slope4. All of the above

A hospital wants to keep a proportion of nurses to doctors on its staff. There are currently 36 nurses and 9 doctors on staff. If two doctors are added to the staff then how many nurses will need to be added?

1 2 3

18%

0%

82%

1. 442. 83. 396

Team Scores20.46 Beast

18.99 Cogsworth

18.5 Chip & Mrs. Potts

14.75 Lumiere

13.4 Belle

What percentage of your current points would you like to wager on the next question?

1. 0%2. 25%3. 50%4. 75%5. 100%

Two trains travel across the country. The distance of train A is represented in the graph. Train B travels at a distance of y kilometers for x hours and is represented by the equation y = 200x + 100. Which of the following statements is not true?

1 2 3

12%

24%

64%

1. Both trains are travelling at the same rate of speed.

2. Both the graph and the equation represent a proportional relationship.

3. Both trains have a slope of 200.

Participant Scores49 Participant 22

45 Participant 9

45 Participant 15

45 Participant 20

41 Participant 27

Fastest Responders (in seconds)

35.76 Participant 9

74.54 Participant 18

78.76 Participant 6

89.12 Participant 22

89.43 Participant 25

Team Scores25.63 Lumiere

24.38 Chip & Mrs. Potts

24.37 Cogsworth

20.08 Beast

16.6 Belle