Flashcard: Domain EE

Front

What is the formula to find the difference in price between two items?

Back

Difference = Price of Item B - Price of Item A

Front

If 331 students went on a field trip and 7 traveled in cars, how do you represent the number of students in buses?

Back

Let x = number of students in each bus. The equation is 331 = 6x + 7.

Front

What does it mean for two expressions to be equivalent?

Back

Two expressions are equivalent if they have the same value for all values of the variables.

Front

How do you solve the inequality 7.5x + 90 ≥ 225 for x?

Back

Subtract 90 from both sides: 7.5x ≥ 135, then divide by 7.5: x ≥ 18.

Front

What is the total cost equation for Mallory's pizza and soda?

Back

10.95x + 12.57 = 89.22, where x is the number of pizzas.

Front

What is the value of x in the equation 10.95x + 12.57 = 89.22?

Back

x = 7.

Front

What is the distributive property in mathematics?

Back

The distributive property states that a(b + c) = ab + ac.

Front

How do you simplify the expression -8(-4y + 6x)?

Back

Using the distributive property: 32y - 48x.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is greater than, less than, or not equal to the other.

Front

What does it mean to solve an equation?

Back

To find the value(s) of the variable(s) that make the equation true.