To determine how many kilometers the car will travel in 45 minutes, we can use the concept of proportionality.
We know that the car travels 100 km in 1 hour. Let's set up a proportion to find the distance it will travel in 45 minutes:
100 km / 1 hour = x km / 45 minutes
To solve for x (the distance traveled in 45 minutes), we can cross-multiply and solve for x:
x km = (100 km * 45 minutes) / 1 hour
Now, let's calculate the distance traveled in 45 minutes:
x km = (100 km * 45 minutes) / 1 hour = (100 km * 45 minutes) / (1 hour * 60 minutes) = (100 km * 45) / 60 = 4,500 km / 60 = 75 km
Therefore, the car will travel 75 km in 45 minutes.