GEMDAS
Evaluate the following:
3(8-5)
9
What is the formula for the perimeter of a rectrangle?
2L + 2W or
L+L+W+W
Evaluate the expression if x=2
X2 + 3(4-2)
10
How do you find the mean of a set of values?
Add the values and divide by the number of values
What is the Origin on a Coordinate Plane?
(0,0)
Where the x-axis and y-axis intersect
4+(32 - 9)
4
Find the perimeter for a garden with a length of 4 feet and a width of 10 feet.
28 feet
Solve for X
X-18 = 6
X=24
What is the MODE of a data set?
The value that occurs the most often
In the following expression, label the coefficient, variable and the constant.
7X - 42
Coefficient = 7
Variable = X
Constant = 42
How do we multiply and divide?
A. Multiplication comes first
B. Division comes first
C. You go left to right
-
C. You go left to right
Find the area of a garden with a length of 7.5 feet and a width of 15 feet
112.5 feet2
Write and graph the following inquality:
Ms Lee is going to the movies! The ticket is already paid for. If she is bringing $25 with her, how much money can she spend on snacks?
see board for the answer
Write an example of a Statistical Question
answers will vary
Brian runs 7 miles every day. The following equation shows the total miles (M) he runs in (D) days.
What is the dependent variable?
M=7D
M is the DV. The number of Miles he runs, depends on the number of days he runs
What does GEMDAS mean?
Grouping Symbols
Exponents
Multiplication
Division
Addition
Subtraction
How do you find surface area?
Find the areas of each side of the prism and add them together
Solve for H
2H - 7 = 2(22-1)
H = 6.5
What is the Median of a data set?
The value in the middle
What is a quotient?
The answer to a division problem
Evaluate the following:
3(23 +13)
27
Find the surface area of a cube with a side length of 3in.
HINT: draw a net
54 in2
Write the following as an expression:
twice the sum of four times a number and three
2(4x+3)
Find the Mean, Mode and Median of the following set of numbers:
17, 16, 17, 9, 10, 9
Mean = 6
Mode = 9,17 (2 modes!)
Median = 13
What is a rational number?
A number that can be made into a fraction