1. A review of Unit 2 with error analysis
Agree or Disagree
A review of Unit 2 with error analysis

2. Question 1
The graph below compares cups to pints. Which of the following ordered pairs would also satisfy this relationship?
A. (4, 2)
B. (2, 4)
C. (2, 0)
D. (1, 2)
Disagree
The correct answer is A.

3. Question 2 Agree 34-Watt Cool White
Mr. Hague purchased different types of light bulbs for a jack-o-lantern he created for Halloween. The information about the bulbs he purchased is shown in the table below.
Which type of light bulb costs the least amount per light bulb?
34-Watt Cool White
Type of Light Bulb
Number Purchased
Total Cost
10-Watt Clear 5
$14.85
13-Watt Warm White 30
$119.40
20-Watt Capsule Bulb 6
$10.74
34-Watt Cool White 90
$147.60
Agree

4. Question 3
The ratio of girls to boys in a class is 7:4. If there is a total of 33 students in the class, how many are girls? 21
Disagree

5. Question 4
The table below shows the number of each item sold at the concession stand.
What might the ratio 2:3 represent?
The number of nachos to candy bars.
Item
Quantity Sold
Popcorn 20
Nachos 15
Hot Dog 25
Candy Bar 30
Disagree. The number of popcorn to candy bars.

6. Question 5
The table below shows the cost for varying number of DVDs. If the relationship stays the same, determine the value of n.
20 DVDs would cost $140.
Agree
Number of DVDs
Cost 3
$21 5
$35 12
$84 20 n

7. Twenty percent of what number is 10?
Question 6
Twenty percent of what number is 10? 50
Agree

8. Number of Music Downloads
Question 7
Using the table below, which ratio compares the number of music downloads for Taylor Swift to the number of music downloads for Shawn Mendes?
A. 3:4
B. 3:2
C. 4:3
D. 2:3
Name of Group
Number of Music Downloads
(in thousands)
Taylor Swift 8
Justin Beiber 10
Shawn Mendes 12
Disagree. The correct answer is D.

9. Question 8
Mrs. Moreland drove 210 miles in 3.5 hours. Ms. Winter drove 244 miles in 4 hours. Who drove at the faster rate of speed per hour?
Mrs. Moreland drove at the faster rate of speed at 60 miles per hour.
Disagree. Ms. Winter drove at the faster rate of speed which is 61 miles per hour

10. Disagree. 30 students did not return their permission slips.
Question 9
In a class of 40 students, 25% returned their permission slips for the school field trip. How many students did not return their permission slips?
10 students
Disagree. 30 students did not return their permission slips.

11. Question 10
At Kroger, the ratio of apples to grapes is the same as the ratio of oranges to bananas. If the ratio of apples to grapes is 6:7, then which of the following statements is possible?
There are 14 oranges and 12 bananas
There are 12 oranges and 16 bananas
There are 18 oranges and 21 bananas
There are 12 oranges and 24 bananas
Agree

12. Question 11
Which value of x will make these ratios equivalent?
= 5 𝑥
The value of x should be 15.
Agree

13. Question 12 Disagree. 90 cupcakes
If we know that 6 cups of flour is used to make 30 cupcakes, figure out how many cupcakes are made with 18 cups of flour? 50 cupcakes are made with 18 cups of flour.
Disagree. 90 cupcakes

14. Question 13
The prices of 4 different bottles of lotion are given in the table.
Which size bottle is the best value?
A. The 25-ounce bottle
B. The 15-ounce bottle
C. The 10-ounce bottle
D. The 5-ounce bottle
Size
Price
24 ounces
$4.50
15 ounces
$2.30
8 ounces
$1.60
4 ounces
$0.95
Agree.

15. Question 14
The ratio of boys to girls in a class is 6:4. If there are 60 students in the class, how many are boys?
24 boys.
Boys
= 60
Girls
Disagree. 36 boys are in the class!

16. Question 15
Mark and Fred had some money in the ratio 6:1. Mark gave half of his money to Fred. Use the diagram to find the ratio of the amount of money Mark had left to the amount of money Fred had in the end. 3:2
Before
After
Disagree. 3:4

17. Question 16
The table below represents the ratio of witch hats to jack-o-lanterns sold for Halloween. Complete the ratio table and find the value of x. The value of x is 54.
Witch Hats
Jack-O-Lanterns 9 36 45 x 15 60 75 90
Agree