When cross canceling fractions, can you multiply vertically?

1600 miles

Step-by-step explanation:

Given:

The scale of the map is given as:

1 inch = 6 miles

Now, on the map, the distance between Seattle and San Francisco is inches.

The actual distance is obtained by multiplying the map distance with the scale value. So, the actual distance from Seattle to San Francisco in miles is given as:

Now, for round trip, we need to add the same distance again. So, total distance in round trip is given as:

799.98 + 799.98 = 1599.96 miles ≈ 1600 miles (Rounded to nearest mile)