Writing Variable Expressions
Write a variable expression that gives:
The sum of x, y, and z
x + y + z
given the x = 10, evaluate:
7x - 5
65
Bonus: add 200 points to your score for free 🐳
Great Job!
Fill in the blank:
7m + 4 + 7m + 4 = 2(_________)
7m + 4 + 7m + 4 = 2 * (7m + 4)
Define: Variable.
Use it in a sentence.
A variable is a letter used to represent a quantity that may change or vary. We use variable to perform calculations in algebra.
Athletic performance depends on a wide range of variables, including physical fitness, skill, and ability to work well with your teammates.
Write a variable expression that gives:
The distance between 6 and a number n
Ill accept: 6 - n
But if you said: | 6-n | ill give you plus 50 points!
Great job.
given the x = 1.5, evaluate:
2(4x + 8)
2(4*1.5 + 8)
2(6 + 8)
2(14)
28
Simplify the following expression by combining like terms:
3x - 2 + 5x - 4
8x - 6
in your own words: What is the distributive property?
Correct answer should mention multiplication, parentheses, and the fact that all separate terms get increased by the same factor or multiple.
What is the definition of the word Consecutive?
Use it in a sentence.
Consecutive means adjacent, or following one after the other.
Example: The numbers 36 and 37 are consecutive positive integers.
Write an expression for the Volume of this box.
the volume of a rectangular box is HxWxL
3x*4y*7
Plus 50 additional points if you said 84xy as this would be in simplified form.
given the x = -4, evaluate:
2x2
2(-4)2
2*(-4)*(-4)
2*16
32
Simplify the following expression by combining like terms:
10 - 37x + 48y + 112x - 91y - 2
75x - 43y + 8
Apply the distributive property
3(4x + 17) =
12x + 51
Define or give examples of a Coefficient
a coefficient is a number that is multiplied by a variable, telling you how many of those variables you have.
example --> the 7 in: 7x or the 3 in 3m2
Write a variable expression that shows the average (the mean) of the values: 10x, 4y, 2x, and -16y
to find the average, you add them all us and divide by how many terms you had:
(10x + 2x + 4y - 16y)/4
but if you said (12x - 12y)/4 --> give yourself 50 extra points.
if you said 3x + 3y --> give yourself 100 extra points.
and if you said 3(x + y) --> give yourself 101 extra points.
Chaotic Random: Choose another team to give 100 points to!
Great, now don't you feel like a good person?!
(And no, you do not get 400 additional points for doing that. yes I KNOW life is unfair)
Simplify the following expression by combining like terms:
9(m + 8) + 11(3m + 4)
42m + 116
Simplify using the distributive property:
2y - (6 - 10y)
2y - (6 - 10y)
2y + -1(6 - 10y)
2y - 6 + 10y
12y + 6
in a variable expression, what is a constant?
a term that has no variable, or the a number that you are adding or subtracting.
example: 10x + 3 --> 3 is the constant.
The Sum of two whole numbers is 26
The Product of the same two whole numbers is 105
What are those two numbers?
21 + 5 = 26 (Sum)
21*5 = 105 (Product)
Correct answer = 21 & 5
given that x = -13 and y = 2
xy + xy - 1
x = -13 and y = 2
xy + xy - 1
(-13)(2) + (-13)2 - 1
-26 + (-13*-13) - 1
-26 + 169 - 1
169 - 27
= 142
Simplify the following expression by combining like terms:
-9(1 - 10n) - 2(3n + 9)
84n - 27
Fill in the blank:
56k - 32 = 8(________)
56k - 32 = 8(7k - 4)
7k - 4 is correct!
What is the line that separates the numerator from the denominator called?
A Vinculum