7th Grade
Math
Math
What is the absolute value of -7?
7
A letter used to math to represent an unknown amount
Variable
Find 2x - 3y when x=4 and y=5
-7
A percent is always out of .....
100
What is the probability of flipping a coin and having it land on heads three times in a row?
1/8
(-4) + (-7) =
-11
Coefficient
Simplify the expression.
2x + 5x + 4 + 2
7x + 6
What is 20% written as a decimal?
.2
Convert 6 1/2 into a improper fraction
13/2
(-10) + 15 =
5
A percent that is added to an item, but given to the government
Tax
Simplify the expression:
2(-4x + 5) + 10
-8x + 20
I buy a pair of shoes for $50. If I have to pay an 8% sales tax, how much tax does she pay?
$4
How many bases does a prism have?
2
If you multiply or divide with different signs, your answer will be ....
Negative
A positive or negative whole number
Integer
Solve the equation:
5x - 8 = 22
x = 6
What is 22% of 88, rounded to the nearest whole number?
19
What is the order of operations.
Parenthesis
Exponents
Multiply/Divide from left to right
Add/subtract from left to right
-125 divided by -5
25
The distance around a circle
Circumferece
Solve the inequality:
2x + 6 > 10
x > 2
I buy a new shirt that originally cost $40 dollars. It is on sale for 20% off. How much do I pay now for the shirt after the discount?
$32
What is a constant?
A number without a variable ex. 8
A diver starts at 20 feet below sea level. He dives down 40 feet deeper to see a fish. He then swims back up 15 feet to see a coral reef. Where is his location now?
-45 feet
What is the difference between an algebraic expression and an algebraic equation?
Expression: No equal sign; can only be simplified
Equation: Has an equal sign; can be solved
Solve the equation:
-3x - 5 = 28
x = -11
What is the percent change: Sam did 20 pull ups on Monday and 25 pull ups on Friday.
25% increase
Find the m and b in the equation
y= 3x -10
m= 3
b= -10