Flashcard Review: Inequalities

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions using symbols such as <, >, ≤, or ≥.

Front

What does the symbol '≤' mean?

Back

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

Front

What does the symbol '≥' mean?

Back

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

Front

How do you solve the inequality -2k > 18?

Back

Divide both sides by -2 and reverse the inequality sign: k < -9.

Front

If Mr. Wilson has $40 and each pizza costs $5 with a $4 delivery fee, how many pizzas can he buy?

Back

Mr. Wilson can buy 7 pizzas.

Front

What inequality does the number line graph that starts at -5 and goes to the right represent?

Back

The inequality is x ≥ -5.

Front

What does the inequality z ≤ 9 mean?

Back

It means that z can be any number less than or equal to 9.

Front

If p < 50, what does this mean in terms of weight?

Back

It means that the weight is less than 50 lbs.

Front

How do you represent 'at most 50 lbs' in inequality form?

Back

p ≤ 50.

Front

What is the solution to the inequality 3x + 5 < 20?

Back

x < 5.