Midterm Review (Unit 2)

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 not equal to the other. Examples include <, >, ≤, and ≥.

Front

How do you represent a situation using an inequality?

Back

To represent a situation using an inequality, identify the quantities involved and the relationship between them. Use symbols like <, >, ≤, or ≥ to express the relationship.

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Back

This inequality represents a situation where the expression on the left (10 times a number x plus 7) is less than 27.

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Back

Front

What is the formula for the perimeter of a rectangle?

Back

Front

Back

This expression indicates that the perimeter of a shape is dependent on the variable x, with a constant addition of 6.

Front

What is the best way to compare costs of multiple options?

Back

To compare costs, calculate the cost per item for each option and choose the one with the lowest cost per item.

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Back

This inequality indicates that the expression on the left (6 times a number x minus 5) is less than -17.

Front

How do you interpret the solution of an inequality?

Back

The solution of an inequality represents all possible values of the variable that make the inequality true.

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Back

The number of weeks (x) represents how many additional signatures Jo needs to collect each week to reach at least 1,000 signatures.