Understanding Measurements and Elevations

This video tutorial covers unit 7, lesson 1 on positive and negative numbers. It includes practical examples such as comparing temperatures and elevations, calculating changes in a whale's elevation, converting fractions to decimals, solving equations involving fractions, and finding the missing side length of a rectangle using its area. The lesson emphasizes understanding and applying mathematical concepts in real-world scenarios.

If the temperature is -11 degrees, how does it compare to -15 degrees?

• It is freezing.

• It is the same.

• It is warmer.

• It is colder.

A diver is 25 feet below sea level and swims up 15 feet. What is his new elevation?

• Sea level

• 10 feet above sea level

• 10 feet below sea level

• 15 feet below sea level

What is the whale's elevation after swimming down 300 feet from the surface?

• 300 feet below sea level

• Sea level

• 150 feet below sea level

• 300 feet above sea level

How far below sea level is the whale after swimming an additional 150 feet down from 300 feet?

• 450 feet

• 300 feet

• 600 feet

• 150 feet

How do you convert 2.1 divided by 1.5 into a simpler form?

• Multiply both by 5

• Add 1 to both

• Multiply both by 10

• Divide both by 2

If 15 ounces is three-fifths of a bottle, how much does the full bottle hold?

• 20 ounces

• 25 ounces

• 30 ounces

• 35 ounces

Jada drank 8.5 ounces from a 15-ounce bottle. How much is left?

• 5.5 ounces

• 7 ounces

• 8 ounces

• 6.5 ounces

A second bottle holds 16 ounces, which is eight-fifths of the first bottle. How much does the first bottle hold?

• 14 ounces

• 8 ounces

• 10 ounces

• 12 ounces

What is the missing side length of a rectangle with an area of 24 square units and one side measuring 2.75 units?

• 8.75 units

• 8.5 units

• 8.8 units

• 8 units

How do you find the missing side length of a rectangle given its area and one side length?

• Multiply the area by the side length

• Divide the area by the side length

• Add the area to the side length

• Subtract the side length from the area