Janiya is taking a road trip. The distance she plans to travel can be written as 3×102 kilometers, 3×105 meters, 3×107 centimeters, or 3×108 millimeters. Which distance uses the most appropriate units?(1 point)

Question

Responses

3×105 meters
3 times 10 to the 5th power meters

3×107 centimeters
3 times 10 to the 7th power centimeters

3×102 kilometers
3 times 10 squared kilometers

3×108 millimeters

Answer 1

To determine which distance uses the most appropriate units, we need to convert all distances to the same unit or consider the scale of the units used.

1. 3×102 kilometers = 300 kilometers
2. 3×105 meters = 300,000 meters
3. 3×107 centimeters = 30,000,000 centimeters
4. 3×108 millimeters = 300,000,000 millimeters

For a road trip, kilometers are typically the most appropriate unit because they align well with distances used for driving. While all options represent the same distance, the most suitable unit for a road trip is usually kilometers.

Thus, the most appropriate answer is: 3×102 kilometers (3 times 10 squared kilometers).