Vocabulary
a number that is multiplied by a variable(s)
Coefficient
ShaReef completed 90% of the passes in the last football game. If he threw a total of 40 passes, how many were completed?
He completed 36 passes.
24 + x = 125 Solve for x
x=101
Closed Circle
equal to
a fixed value that does not appear with a variable(s)
Constant
In a bag, 20% of the marbles are blue. If there is a total of 25 marbles, how many are blue?
Hint: 20% = _________
There are 5 blue marbles.
x - 11 = 23
x=34
Open circle
greater than, less than, or not equal to
a mathematical statement composed of algebraic and/or numeric expressions set apart by an inequality symbol
Inequality
Levi owes his sister $160. If he pays his sister $120, what percent of his debt has he paid?
ShaReef has paid 75% of his debt.
4x=-12
x=-3
–9x > 18
x < -2
the rules of which calculations are performed first when simplifying an expression
Order of operations
BrynzLea bought a new candle. The candle was on sale for 40% off. If she saved $12, what was the original price of the candle.
The original price of the candle was $30
x/4=12
x=48
x/-3 ≥ –6
x ≤ 18
a letter or symbol that represents a number
Variable
In Ms. Hyde’s class, 40% of the students are girls. If there are 25 students in Ms. Hyde’s class, how many of them are girls?
10 girls
180 = 2x
x=90
─4x < ─22
x > 5.5