Question

1. Jackie has to go to her grandmother's funeral in Georgia. She travels a total of 839 miles. She arrives in 9 hours. What was the average speed of her trip in miles per hour?

2. At a cross country meet at Carver Middle school, a runner does one complete 1500-meter run in 35 minutes. What was her average speed in meters per minute?

3. The new rocket (toy) travels at 35 miles in about 2 hours. What is the average speed the rocket toy travels in miles per hour?

4. Janine swam at her last competition for 50 meters in 21.22 seconds. What is the average speed she swam in meters per second?

5. A Camaro travels 110 miles in 60 minutes. What is the average speed the car travels in miles per hour?

6. If a car travels 400 meters in 20 seconds, how fast is it going in meters per second?

7. If you move 50 meters in 10 seconds, what is your speed in meters per second?

8. If you arrive to my class 45 seconds after leaving math, which is 90 meters away, how fast did you travel in meters per second?

9. A plane travels 395,000 meters in 9000 seconds. What was its speed in meters per second?

10.It takes Serina 0.25 hours to drive to school, and her route is 16 kilometers long. What was her speed in kilometers per hour?

Answer 1

The average speed for each scenario was calculated by dividing the total distance by the total time taken, with results ranging from running and swimming speeds to vehicle speeds in miles per hour and meters per second.

Step-by-step explanation:

To calculate the average speed of a trip or movement, we divide the total distance traveled by the total time taken. Here are the solutions for each problem:

• Jackie traveled 839 miles in 9 hours, so her average speed is 839 miles / 9 hours = 93.22 miles per hour.
• The runner completed a 1500-meter run in 35 minutes, resulting in an average speed of 1500 meters / 35 minutes = 42.86 meters per minute.
• The toy rocket travels 35 miles in about 2 hours, which means it moves at an average speed of 35 miles / 2 hours = 17.5 miles per hour.
• Janine swam 50 meters in 21.22 seconds, which gives an average speed of 50 meters / 21.22 seconds = 2.36 meters per second.
• A Camaro travels 110 miles in 60 minutes. This is equivalent to 110 miles per hour since an hour is exactly 60 minutes.
• If a car moves 400 meters in 20 seconds, its speed is 400 meters / 20 seconds = 20 meters per second.
• Moving 50 meters in 10 seconds means the speed is 50 meters / 10 seconds = 5 meters per second.
• Traveling 90 meters in 45 seconds results in a speed of 90 meters / 45 seconds = 2 meters per second.
• The plane covers 395,000 meters in 9000 seconds, which equates to an average speed of 395,000 meters / 9000 seconds = 43.89 meters per second.
• Serina drives 16 kilometers in 0.25 hours, her speed is 16 kilometers / 0.25 hours = 64 kilometers per hour.