Geometry & Measurement
Expressions & Equations
The Number System
Ratios & Proportional Relationship
Statistics and Probability
Vocabulary & Random
100
What is the circumference of a circle with a radius of 7cm?
Use C = 2pi*r
43.96
100
Find x.
25x = 225
x = 9
100
| -4 + 9|
5
100
8y + 2 = 50
y=6
100
Lana and Jeff each randomly surveyed 15 students about their favorite types of movies. Are these samples representative of the school population? Explain.
No, because, the sample size is too small and we don't know the diversity of the students.
100
What is a constant?
Just a number without a variable.
200
Straight angles are how many degrees?
180 degrees
200
Simplify the following expression: -4x - 7x + 9
-11x + 9
200
Is distance always positive or negative?
Positive
200
x/2 + 9 = 15
What is x?
x = 12
200
If you have a bag with 20 markers ( 3 blue, 5 red, 7 green, 2 pink, 3 black), what is the probability of picking a black and then a blue marker out of the bag without replacement?
9/380
200
What is Inverse Operation?
Opposite operations
300
What is the area of a triangle with a base of 7 units and a height of 8 units? Use A = 1/2bh.
28
300
Dennis bought shoes on sale for 25% discount. If the shoes were originally $200, how much did Dennis pay for the shoes?
$150
300
Choose all the expressions that makes the following equation true?
-4/5 =
a. -(4/5) b. -(-4/-5) c. 4/5 d. -5/4
a. -(4/5)
b. -(-4/-5)
300
At the nearest wholesale store, 3 bags of cereal cost $21.75.
A) Find the unit price, then
B) Find the cost of 5 bags of cereal.
A) Unit price = $7.25 per bag
B) Cost of 5 bags = $36.25.
300
Develop a probability model for rolling a cube with faces numbered 1 through 6.
The probability of rolling any number from 1 - 6 is 1 out of 6.
P(1) = 1/6 P(2) = 1/6 P(3) = 1/6 P(4) = 1/6
P(5) = 1/6 P(6) = 1/6
300
Find the area of the rectangle.
What is the difference between an Area and a Perimeter?
Area of the rectangle is 330 cm2
Area measures the surface inside an object. A Perimeter measures the distance around an object.
400
You have a circle with a radius of 5 cm. What is the circumference? Use C=2pi*r.
31.4
400
Factor the expression 63-42b.
21(3a-2b)
400
What is the decimal equivalent of
7/12
0.58333
400
Tammy purchase items for a total of $82.65. She had a coupon for 15% off a purchase of $50 or more. How much did Tammy pay for her items?
$70.25
400
Find the probability of flipping a coin and it lands on tails the first flip and heads after the second flip?
1/4
400
A rate with a denominator of 1, such as 60 miles per hour.
What is a Unit Rate?
500
What is the volume of a rectangular prism with a length of 5, width of 3, and height of 4?
60 cubic units
500
Solve: A gym tracks the number of points earned by two teams. Team A earns 5x+12 points; Team B earns 2x+7 points. Write and simplify an expression that represents how many more points Team A has than Team B.
Expression: (5x+12)-(2x+7)
Simplified: Team A has 3x+5 more points than Team B.
500
A scuba diver is swimming 15 feet below the water's surface. The diver swims up slowly at 0.5 feet per second for 4 seconds and then stops to look at an eel. Finally, the diver swims up for 3 more seconds at 0.4 feet per second. What is the diver's final depth?
The diver's final depth is 11.8 feet below surface.
500
In a proportional relationship written as y=kx,
A) What does k represent?
B) Explain the relationship between x and y.
C) Which grows faster, x or y?
A) The value of k represents the constant.
B) Every time x increases, y increases by 0.25.
C) x grows faster.
500
Twenty-five volunteers will wear one of 6 blue, 7 green, 8 yellow, and 4 red aprons during an upcoming food drive. If the aprons are assigned randomly, what is the probability that a volunteer is assigned an apron that is NOT green?
(A) 6/25 (B) 7/25 (C) 18/25 (D) 13/25
Total number of aprons: 25
Number of non-green aprons: 18
Probably: # of non-green / Total # of aprons
18/25 = 0.72
500
The entire group being studied.
What is Population?