Answer:
The actual distance is 127 miles.
Explanation:
Given:
On a map, the distance from Los Angeles to San Diego is 6.35 cm.
The scale is 1 cm = 20 miles.
Now, to find the actual distance.
Let the actual distance be

And the distance on map is 6.35 cm.
So, 6.35 cm is equivalent to

And as given on the scale 1 cm is equivalent to 20 miles.
Now, to get the actual distance by using cross multiplication method:

By using cross multiplication we get:
⇒

⇒

Therefore, the actual distance is 127 miles.