Question

two runners were competing to see who could run with a greater average speed. Runner A ran 12 miles in 3 hours. Runner B ran 9 miles in 2 hours. Which runner ran with a greater average speed

Answer 1

Runner B ran with a greater average speed (4.5 miles per hour) than Runner A (4 miles per hour) after calculating the average speed for each using the formula speed = distance/time.

Step-by-step explanation:

To determine which runner had a greater average speed, we need to calculate the speed for each runner using the formula speed = distance/time.

For Runner A, who ran 12 miles in 3 hours, the average speed is:

Speed of Runner A = 12 miles / 3 hours = 4 miles per hour.

For Runner B, who ran 9 miles in 2 hours, the average speed is:

Speed of Runner B = 9 miles / 2 hours = 4.5 miles per hour.

Therefore, Runner B ran with a greater average speed than Runner A.

Answer 2

Runner B took about 13.3 mins per mile while Runner A took about 15 mins per mile so runner be ran faster