Flashcard 5-2 Review

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is greater than, less than, greater than or equal to, or less than or equal to the other.

Front

What does the symbol '>' mean in inequalities?

Back

The symbol '>' means 'greater than'. For example, x > 2 means x is greater than 2.

Front

What does the symbol '<' mean in inequalities?

Back

The symbol '<' means 'less than'. For example, x < 5 means x is less than 5.

Front

What does the symbol '≥' mean in inequalities?

Back

The symbol '≥' means 'greater than or equal to'. For example, x ≥ 3 means x is greater than or equal to 3.

Front

What does the symbol '≤' mean in inequalities?

Back

The symbol '≤' means 'less than or equal to'. For example, x ≤ 4 means x is less than or equal to 4.

Front

How do you solve the inequality x + 5 > 7?

Back

Subtract 5 from both sides: x > 2.

Front

What is the solution to the inequality -3t ≤ -21?

Back

Divide both sides by -3 (remember to flip the inequality): t ≥ 7.

Front

How do you represent the situation: 'A water balloon can hold up to 2.5 liters of water, filled at 0.2 liters per second'?

Back

The inequality is 0.2t ≤ 2.5.

Front

What is the solution to the inequality r - 14 ≥ 17?

Back

Add 14 to both sides: r ≥ 31.

Front

Back

Multiply both sides by 2: b < 14.