a van moves with a constant speed of 40 miles per hour. How far can it travel in 2 hours?

I'll be glad to check your answer.

20 miles?

If you go 40 miles the first hour and 40 more the second hour how far did you go?

Certainly NOT 20 !!!

80 miles?

Yes :)

1000 km/h. How far can it travel in 1/2 hour? to travel a distance of 20 miles. 3680 kilometers.

To find out how far the van can travel in 2 hours, we need to use the formula:

Distance = Speed x Time

First, we need to convert the time from hours to seconds in order to match the speed, which is given in miles per hour. Since there are 60 minutes in an hour and 60 seconds in a minute, we multiply 2 hours by 60 minutes and then by 60 seconds:

2 hours x 60 minutes/hour x 60 seconds/minute = 7200 seconds

Now that we have the time in seconds, we can calculate the distance using the formula:

Distance = 40 miles/hour x 7200 seconds

To multiply 7200 by 40, we can multiply it by 4 first (7200 x 4 = 28,800) and then multiply the result by 10 (28,800 x 10 = 288,000). Therefore, the van can travel 288,000 miles in 2 hours.