Unit 2: Integers and Rational Number
Unit 4: Represent and Solve Equations and Inequalities
Unit 6: Understand and Use Percentages
Unit 8: Display, Describe and Summarize Data
Mixed Bag
100
What is opposite of 42?
Answer: -16
42 = 16 opposite of 16 is -16.
100
When solving an equation with a variable, to undo multiplication you must do what operation?
Bonus (100): What is the value of the variable in the equation 4x = 72?
Answer: Divide!
To undo multiplication, use inverse operations by dividing!
4x =72 --> x = 72 / 4 = 18
100
What is the decimal and fraction equivalent to 36%?
Answer: .36
Fraction: 36/100 --> 9/25
100
Is this a statistical question?
Did Mr. Ciampi finishing eating his lunch today?
Answer: NO
It does not have a variety of answers!
100
Marcus' Bulldog weighs 2805 grams. What is the dog's weight in kilograms?
Answer: 2.805
Move the decimal three spaces to the left!
200
Order the numbers from least to greatest:
1/2, -1/3, -1/4, 2/3, 1 2/5
Answer: The bigger the negative number the smaller its value!
-1/3, -1/4,1/2, 2/3, 1 2/5
200
What is the inequality that represents the situation described?
The profit, p, was more than $5000
Answer: p > 5000
200
What is 4/5 as a decimal and percent?
Answer: .8 and 80%
200
What is the median of this data set?
24,23,18,34,26,31
Answer: 25 --> its the middle number
Order from least to greatest:
18,23,24,26,31,34
Median is in between 24 and 26 or (50/2)
200
What is the value of the expression below?
2(2^3+5)
Answer: 26
P: (23 +5) = 13
M: 2(13) = 26
300
What is the reflection of the point (-2,4) over the x -axis?
Answer: (-2,-4)
Keep x the same, change the y.
300
Name 2 ordered pairs (150 points each) on the line y = 4x + 2?
Answer: Many answers.
Some examples: (0,2) (1,6) (2,10) (3,14) (4,18)
Plug in any x value and solve the equation for y value.
300
What is 55% of 180?
Answer:99
Part: ? Whole: 180 Percent: 55% =.55 or 55/100
Multiply: 55/100 x 180 = 9900/100 = 99
300
What is the mean of this data set?
42, 34, 36, 24, 34
Bonus 100 points: What is the mode in the data set?
answer: 34
add the numbers up : 170
Divide by the number of numbers in data set : 5
170 / 5 = 34
Bonus: Mode is 34 as well! (Number that shows up the most often)
300
Part A (150 Points): What is the GCF of 16 and 24?
Part B (150 Points): What is the LCM of 4 and 9?
Part A Answer: 8
2 x 2 x 2 = 8
Part B Answer: 36
4,8,12,16,20,24,28,32,36
9,18,27, 36
400
What are the distance between the following points?
200 points: (3,5) (3,-6)
200 points: (1,-2) (1,-9)
Answer:
11 units --> l 5 l + l -6 l = l 11 l = 11
Different quadrants --> add!
7 units --> l-2 l - l-9 l = l -7 l = 7
400
Solve the equation for x.
x/8 =0.250
Answer: x =2
x = .250 x 8 = 2
400
Ms. V grades 16% of her tests in 24 minutes.
How many minutes will it take to grade all of the tests?
Answer: 150 minutes
Part: 24 Whole: ? Percent: 16% =.16 or 16/100
Divide: 24/.16 = 150 minutes
400
a. Identify all the parts of a the box plot below:
Minimum, Maximum, First Quartile, Median, Third Quartile
b. What is the data's IQR value?
Minimum: 2 (start of the whisker)
Maximum: 15 (end of whisker)
Median: 6 (line inside box)
First quartile: 5 (start of box)
Third quartile: 10 (end of box)
IQR = 10 -5 = 5
400
Write an equivalent expression to the following.
a. 200 points: 6(5x +4)
b. 200 points: 7x + 4 - 2x + 5
Answer:
a. 30x + 24 --> Distributive Property
b. 5x + 9 --> Combine like terms!
500
What are the coordinate pairs for the places below? Please give all 5 pairs to receive the full points.
Answer: Museum: (-4, 3)
Fire Station: (0,4) Post Office: (3,2)
Mall: (2,-3) Library: (-2,-2)
500
Which of the following is the equation for the line below?
a. x + 4 =y b. 2x + 3 =y c. 4x - 2 = y
Answer: 2x + 3
Plug in to the equation to see if you get the right x and y values
Points on the line: (0,3) (1,5) (3,9)
2(0) + 3 = 3 2(1) + 3 = 5 2(3) +3 = 9
500
Ms. Mase grades 40% of her assignments in 35 minutes.
How long will it take to grade all the assignments?
Answer: 87.5 minutes
Part:35 Whole: ? Percent: 40% =.40 or 40/100
Divide: 35/.40 = 87.5 minutes
500
What is the MAD (mean absolute deviation) of the following data?
7,11, 9, 28,41,36
Answer: 13
Mean of data set = 132 / 6 = 22
AD: 15 + 11 + 13 + 6 + 19 + 14 = 78
MAD: 78 / 6 = 13
500
What is the area of the trapezoid below?
Answer:
Area = 1/2h(base1 +base2)
Area = 1/2(2)(7 + 4) = 11 cm sq