U2.20 Writing Inequalities from Word Problems

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 equal to the other.

Front

What does the symbol '>' represent in inequalities?

Back

'>' means 'greater than'. For example, if x > 5, then x can be any number greater than 5.

Front

What does the symbol '<' represent in inequalities?

Back

'<'' means 'less than'. For example, if y < 10, then y can be any number less than 10.

Front

What does the symbol '≥' represent in inequalities?

Back

'≥' means 'greater than or equal to'. For example, if z ≥ 3, then z can be 3 or any number greater than 3.

Front

What does the symbol '≤' represent in inequalities?

Back

'≤' means 'less than or equal to'. For example, if a ≤ 7, then a can be 7 or any number less than 7.

Front

How do you write the inequality for 'a number is at least 15'?

Back

The inequality is x ≥ 15.

Front

How do you write the inequality for 'a number is no more than 20'?

Back

The inequality is y ≤ 20.

Front

If a person must be no more than 12 years old to order from the kid's menu, how is this represented?

Back

This is represented as k ≤ 12.

Front

If m > 17, what is a possible value for m?

Back

A possible value for m is 23.

Front

What is the inequality for the total cost of hiring a DJ that must be under $600?

Back

The inequality is 125x + 55 < 600.