Question

Tom and Diane start to race. Tom takes 4 seconds to run 25 yards. Diane runs 20 yards in 3 seconds.

1. who runs faster? Explain how you know.

Answer 1

Diane runs faster than Tom. She has a higher speed of 6.67 yards/second compared to Tom's speed of 6.25 yards/second.

Step-by-step explanation:

To determine who runs faster between Tom and Diane, we need to compare their speeds. Speed is calculated by dividing the distance covered by the time taken. Using the given information, we can calculate the speeds of both runners:

Tom's speed = Distance / Time = 25 yards / 4 seconds = 6.25 yards/second

Diane's speed = Distance / Time = 20 yards / 3 seconds = 6.67 yards/second

Comparing their speeds, we can see that Diane runs faster than Tom. She has a higher speed of 6.67 yards/second compared to Tom's speed of 6.25 yards/second.

Answer 2

Diane is faster since her speed is higher.

Step-by-step explanation:

We can find each speed in yards per second.

Tom:

25 yards / 4 seconds = 6.25 yards/second

Diane:

20 yards / 3 seconds = 6.67 yards/second

Diane's speed is higher, 6.67 yd/s vs 6.25 yd/s, so Diane is faster.

Answer: Diane is faster since her speed is higher.