Vocabulary
The number in front of a variable (multiplying the variable).
What is a coefficient?
(x/1.5) = 16
What is 24
-14 = 7w + 2w + 8.5
What is -2.5
8x – 7 = 4x + 21
What is 7
Carl has fewer than 7 hats in his closet.
What is x < 7
A fixed value, or a number on it's own.
What is a constant?
t - 4.25 = -4
What is 0.25
(1/2)b + 8 – 10 = 6
14x + 1 = 8x + 13
What is 2
Theo’s suitcase weighs more than 56.75 pounds.
What is x > 56.75
A relation between two expressions that are not equal to one another.
What is an inequality?
14 + 9m = -13
What is -3
18 – 5w + 7w – 4 = 28
What is 7
6x + 3 = 6x – 20 – x
What is -23
Jamar can fit no more than 8 people in his car.
What is x (less than or = to) 8
A symbol, such as x, used to represent an unknown value.
What is a variable?
-12 = (n/2) - 6
What is -12
3.3x – 26.4 – x = 1.2
What is 12
6 + 12x + 36 = -8.5x – 40
What is -4
Master Gomez informed her students that their exam will have at most 25 questions.
What is x (less than or = to) 25
A number that can be expressed as an integer or the quotient of an integer divided by a nonzero integer.
What is a rational number?
0.5w + 15 = 20
What is 10?
-2 + 25x + 17 = -35
What is -2
8 + 9.8x + 9 = 3.8x – 16 + 3.8x
What is -15
Tess has 42 words of an essay typed and is typing about 1.3 words per second. Margo has 122 words of an essay typed and is erasing about 1.2 words per second. In how many seconds will the number of words in Tess’s essay exceed the number of words in Margo’s essay?
What is: 42 + 1.3x > 122 – 1.2x