Question

1.)A car travels 10 miles east in 30 minutes.

20 mi/h

2.)Sarah walks to school, 1.5 miles in 30 minutes.

3 mi/h

3.) The world record for the men's marathon, 42 km, is 2 hours and 3 minutes.

4.)Miguel threw a baseball a distance of 40 meters. It hit the ground in 5 seconds.

5.)A motorist travels 130 km in 2 hours.





I NEED ANSWER ONLY FROM NUMBER 3 TO 5, I ALREADY HAVE ANSWER OF THOSE OTHER ONCE

Answer 1

The average speed for the marathon is 20.49 km/h, the baseball's average speed is 8 m/s, and the motorist's average speed is 65 km/h.

Step-by-step explanation:

To address the students question, we need to calculate the average speed for each scenario from numbers 3 to 5:

1. The world record for the men's marathon, 42 kilometers in 2 hours and 3 minutes, requires converting the time to hours (2 + 3/60 hours = 2.05 hours). The average speed is calculated as distance divided by time, which is 42 km / 2.05 h = approximately 20.49 km/h.
2. Miguel throws a baseball a distance of 40 meters in 5 seconds. To find the average speed, divide the distance by the time, giving us 40 m / 5 s = 8 m/s.
3. A motorist travels 130 km in 2 hours. The average speed is calculated by dividing the distance by the time, which is 130 km / 2 h = 65 km/h.

You can check whether these answers are reasonable by considering if they make sense intuitively and if they align with standard speeds for each activity.

Answer 2

In this order:

~~~~~~~~~

20 mi/h

3 mi/h

.35 km/min

8 m/s

65 km/h

Step-by-step explanation:

Hope this helps!