Describing Real-World Situations with Inequalities

The video tutorial explains the concept of sonic booms, which occur when an object travels faster than the speed of sound (768 mph). It then guides viewers through writing inequalities to represent conditions for sonic booms, undercooked steak temperatures, and snowboarding conditions. Each scenario is explained with a focus on formulating the correct inequality to represent the given conditions.

What is the approximate speed of sound in miles per hour?

• 500 mph

• 1000 mph

• 1200 mph

• 768 mph

Tags

CCSS.8.EE.A.2

What phenomenon occurs when an object travels faster than the speed of sound?

• Whistle

• Sonic boom

• Thunder

• Echo

Which inequality represents the speed, s, at which a moving object creates a sonic boom?

• s ≤ 768

• s > 768

• s = 768

• s < 768

Tags

CCSS.6.EE.B.8

What is the internal temperature required to cook a steak to medium-rare?

• 120 degrees Fahrenheit

• 135 degrees Fahrenheit

• 150 degrees Fahrenheit

• 165 degrees Fahrenheit

Which inequality represents the temperature, t, of an undercooked steak?

• t ≥ 135

• t < 135

• t = 135

• t > 135

Tags

CCSS.6.EE.B.8

What happens if the internal temperature of a steak is lower than 135 degrees Fahrenheit?

• The steak is burnt

• The steak is overcooked

• The steak is medium-rare

• The steak is undercooked

At what temperature will Simone go snowboarding?

• Only if it is exactly 5 degrees Celsius

• If it is warmer than 5 degrees Celsius

• If it is equal to or colder than 5 degrees Celsius

• If it is exactly 0 degrees Celsius

Which inequality represents the temperatures at which Simone will go snowboarding?

• t > 5

• t < 5

• t ≥ 5

• t ≤ 5

Tags

CCSS.6.EE.B.8

What is the unit of temperature used in the snowboarding scenario?

• Rankine

• Fahrenheit

• Kelvin

• Celsius

What does the inequality t ≤ 5 represent in the context of Simone's snowboarding?

• Simone will snowboard if the temperature is exactly 5 degrees Celsius

• Simone will snowboard if the temperature is warmer than 5 degrees Celsius

• Simone will snowboard if the temperature is equal to or colder than 5 degrees Celsius

• Simone will snowboard if the temperature is exactly 0 degrees Celsius

Tags

CCSS.6.EE.B.8