This video lesson introduces algebra word problems focusing on the relationship between distance, speed, and time. It explains the distance-speed-time triangle, a tool to solve these problems efficiently. The lesson includes examples of calculating time, distance, and speed using the triangle, followed by practice problems. The video emphasizes the importance of understanding and memorizing the relationship to solve problems confidently.

What is the main focus of the fifth set of video lessons?

• Geometry problems

• Word problems

• Algebraic equations

• Trigonometry

What does the distance-speed-time triangle help you calculate?

• Perimeter of a rectangle

• Relationship between distance, speed, and time

• Volume of a cube

• Area of a triangle

In the distance-speed-time triangle, what is placed at the top?

• Speed

• Time

• None of the above

• Distance

If you need to calculate time, which formula would you use?

• Distance divided by speed

• Speed divided by distance

• Speed times distance

• Time divided by speed

In the example given, how long does it take to drive 270 kilometers at 108 kilometers per hour?

• 3 hours

• 2 hours

• 2.5 hours

• 1.5 hours

To calculate distance, which formula should you use?

• Distance divided by speed

• Speed times time

• Time divided by speed

• Speed divided by time

If you travel at 70 miles per hour for 6 hours, what is the distance covered?

• 420 miles

• 300 miles

• 350 miles

• 500 miles

How do you calculate speed using the distance-speed-time triangle?

• Speed divided by time

• Time divided by distance

• Distance divided by time

• Speed times distance

What is the speed if you cover 100 meters in 9.6 seconds?

• 12.4 meters per second

• 11.4 meters per second

• 10.4 meters per second

• 9.4 meters per second

What is the correct unit for speed in the example of Usain Bolt's run?

• Kilometers per second

• Meters per second

• Kilometers per hour

• Meters per hour