The scale of a map is 1 in : 250 miles. city a is 378 miles from city b. to the nearest tenth, how far is its distance on the map?

This is a proportion question. We can express this as an equation where the answer is x:

 = 

From there, you can just cross-multiply and divide to get:

A tenth of 250 is 25, so this is roughly  or , so it'll be approximately 1.7 inches on the map.

1.7 inches 
Its is the best i could come up with hope this helps