Scuba Diving (Multiply rational numbers in a real-world example)

The video tutorial explains how Jim, an experienced scuba diver, adjusts to pressure changes by stopping every 28.5 feet. Starting at sea level, Jim's altitude decreases by 28.5 feet each time he stops, resulting in a total drop of 85.5 feet after three stops. The lesson demonstrates how to multiply rational numbers, emphasizing the importance of determining the sign of the product when multiplying a negative and a positive number. The tutorial concludes by summarizing the key points learned about multiplying rational numbers in real-world scenarios.

What is the distance Jim dives before he stops to adjust to the pressure?

• 50 feet

• 30 feet

• 28.5 feet

• 15 feet

How many times does Jim stop to adjust during his dive?

• 2 times

• 5 times

• 4 times

• 3 times

What is the expression used to calculate Jim's total change in altitude?

• -28.5 divided by 3

• 28.5 multiplied by 3

• -28.5 multiplied by 3

• 28.5 divided by 3

What is the result of multiplying 28.5 by 3?

• 86.5

• 85.5

• 84.5

• 87.5

What is Jim's final altitude after stopping to adjust 3 times?

• -84.5 feet

• -87.5 feet

• -85.5 feet

• -86.5 feet