Inequalities and Percentages in Context

The video covers solutions of inequalities, focusing on representing unknowns on a number line and applying inequalities to real-world scenarios like amusement park ride height requirements. It includes exercises on determining valid solutions and concludes with a summary and homework discussion.

What does it mean for one letter to be greater than another on a number line?

• It is to the right of the other letter.

• It is directly below the other letter.

• It is directly above the other letter.

• It is to the left of the other letter.

If point D is at 0 on a number line, which of the following could be a possible value for point E?

• 2

• 1

• 0

• -1

For the high bounce ride, what is the correct inequality to represent the height requirement?

• H <= 55 and H >= 72

• H > 55 and H < 72

• H >= 55 and H <= 72

• H < 55 and H > 72

Which of the following is a solution to the inequality H < 75 and H > 64?

• 75

• 76

• 63

• 65

What is the correct inequality to represent a speed limit of 60 mph?

• S >= 60

• S <= 60

• S < 60

• S > 60

If the temperature is between 52°F and 60°F, which inequality correctly represents this range?

• T > 52 and T < 60

• T >= 52 and T <= 60

• T < 52 and T > 60

• T <= 52 and T >= 60

Which of the following numbers is a solution to the inequality K > 5?

• 4

• 0.5

• 5

• 5.1

If a movie ticket costs less than $10, which of the following could be the cost?

• $12

• $15

• $8

• $10

What percentage of the usual price did Elena's mom pay for the cell phone if she paid $150 out of $250?

• 50%

• 60%

• 70%

• 80%

If Elena's dad paid 75% of the usual price for a cell phone that usually sells for $250, how much did he pay?

• $200

• $175

• $187.50

• $150