Math 3 Unit 7

Front

What is the process to solve for x in an equation?

Back

To solve for x, isolate x on one side of the equation using inverse operations (addition, subtraction, multiplication, division) to simplify the equation.

Tags

CCSS.7.EE.B.4A

Front

What does it mean to round a number to the tenths place?

Back

Rounding to the tenths place means adjusting the number to one decimal place, where the first digit after the decimal point represents tenths.

Tags

CCSS.5.NBT.A.4

Front

If x + 5 = 12, what is the value of x?

Back

x = 7

Tags

CCSS.6.EE.B.7

Front

What is the formula for finding the average of a set of numbers?

Back

Average = (Sum of all values) / (Number of values)

Tags

CCSS.6.SP.B.5C

Front

How do you solve the equation 3x = 15?

Back

Divide both sides by 3: x = 15 / 3, so x = 5.

Tags

CCSS.6.EE.B.7

Front

What is the definition of a variable in mathematics?

Back

A variable is a symbol (often a letter) that represents an unknown value in an equation or expression.

Tags

CCSS.6.EE.A.2B

Front

What is the importance of checking your solution in an equation?

Back

Checking your solution ensures that the value of x satisfies the original equation, confirming its correctness.

Tags

CCSS.8.EE.C.7B

Front

What does it mean to isolate a variable?

Back

Isolating a variable means rearranging the equation so that the variable is on one side and all other terms are on the opposite side.

Front

If 2x + 3 = 11, what is the value of x?

Back

First, subtract 3 from both sides: 2x = 8. Then divide by 2: x = 4.

Tags

CCSS.7.EE.B.4A

Front

What is the definition of an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing one or more variables.

Tags

CCSS.HSA.REI.A.1