Equations/Inequalities Review

Front

What is an equation?

Back

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

Front

What is an inequality?

Back

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

Front

How do you solve the equation 4x - 5 = 11?

Back

Add 5 to both sides to get 4x = 16, then divide by 4 to find x = 4.

Front

What does the symbol '>' mean in inequalities?

Back

The symbol '>' means 'greater than'.

Front

What does the symbol '<' mean in inequalities?

Back

The symbol '<' means 'less than'.

Front

What does the symbol '≥' mean in inequalities?

Back

The symbol '≥' means 'greater than or equal to'.

Front

What does the symbol '≤' mean in inequalities?

Back

The symbol '≤' means 'less than or equal to'.

Front

How do you represent a total cost equation for items bought?

Back

Total cost = (cost per item × number of items) + fixed costs.

Front

If Mallory spent $12.57 on sodas and $10.95 per pizza, how do you write the equation for her total spending?

Back

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

Front

What is the first step to solve the equation 2x = 4?

Back

Divide both sides by 2 to isolate x.