Friday 12/6 pre algebra warm up

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, greater than or equal to, or less than or equal to the other.

Front

How do you write an inequality for a situation where you need to save money?

Back

You can write an inequality by expressing the total amount you have plus what you will earn as greater than or equal to the amount you need.

Front

What does the symbol '≥' mean in an inequality?

Back

'≥' means 'greater than or equal to'.

Front

What does the symbol '≤' mean in an inequality?

Back

'≤' means 'less than or equal to'.

Front

When do you flip the inequality sign?

Back

You flip the inequality sign when you multiply or divide both sides of the inequality by a negative number.

Front

Write the inequality for Lea's situation: She needs at least $240, has $30, and earns $14 per car washed.

Back

Front

Write the inequality for Sylvia's savings goal: She wants to save at least $200, has $60, and saves $5 per week.

Back

Front

Back

Front

What happens to the inequality sign when you divide by a negative number?

Back

The inequality sign flips direction.

Front

Back