scaling maps

Question

a company designed 2 rectangle maps of the same region. these maps are described below:

Map one : dimensions are 8 inches by 10 inches. the scale is 3/4 miles to 1 inch.

Map 2: the dimensions are 4 inches by 5 inches.

which ratio represents the scale ( miles to inches ) on map 2?

Answer 1

Map 1: 8 by 10 = 3/4 mile to 1 inch divide both sides by 2

 

Map 2: 4 by 5 = 0.375 mile to 1/2 inch.