Math Checkpoint 13 Review

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 represent a situation with an inequality?

Back

You can represent a situation with an inequality by using symbols like >, <, ≥, or ≤ to show the relationship between quantities.

Front

If Sandy sold 22 tickets, which was at least 6 more than twice the number of tickets Teresa sold, how can we express this mathematically?

Back

The inequality can be expressed as 22 ≥ 2t + 6, where t is the number of tickets Teresa sold.

Front

What is the solution set of an inequality?

Back

The solution set of an inequality is the set of all values that make the inequality true.

Front

What does it mean for a number to be part of a solution set?

Back

A number is part of a solution set if, when substituted into the inequality, it makes the inequality true.

Front

What is a compound inequality?

Back

A compound inequality combines two or more inequalities, often using 'and' or 'or' to connect them.

Front

How do you graph a compound inequality?

Back

To graph a compound inequality, you shade the regions that satisfy both inequalities on a number line.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

How do you convert a percentage to a ratio?

Back

To convert a percentage to a ratio, express the percentage as a fraction and simplify it.

Front

If 36% of students earned a grade of B or higher, what is the ratio of students receiving a grade of B or higher to the total number of students?

Back

The ratio is 9:25, meaning for every 25 students, 9 received a grade of B or higher.