One-Step Inequalities

One-Step Inequalities

Inequalities

An inequality compares two values or expressions

Write this down in your Journal.

Multiple Choice

Which symbol will you use for:

Less than

• >

• <

• >

• <

• =

Multiple Choice

Which symbol will you use for:

Greater than or equal to

• >

• <

• >

• <

• =

Writing Inequalities

• Look for your key words: Box them

• Look for your numbers: Circle them

• Look for your variable: Underline them

• Ex:

•  x is at most 30

• x < 30

Practice:

In order to be admitted for a certain ride at an amusement park, a child must be greater than or equal to 36 inches tall. Write an inequality to match.

Multiple Choice

Write the Inequality.

Sam makes at most $25 dollars a day. If she is paid $2.25 per hour, write an inequality to determine the number of hours she works.

• 2.25h > 25

• 2.25h < 25

• 2.25h > 25

• 2.25h < 25

Solving One-Step Inequalities

• Treat inequalities like equations. You want to get the variable by itself by using inverse operations.

• Ex 1: 3 + m > 15

• Subtract 3 to both sides

• m > 12

• Ex 2: 4x < 64

• Divided both sides by 4

• x < 16

Multiple Choice

Solve the Inequality:

m - 10 < 30

• m = 40

• m < 40

• m = 20

• m < 20