On a map, 1/2 inch represents 15 miles. if the distance between dover and portland is 50 miles, what is the distance, in inches, between the two cities on the map?
(1/2) / 15 = x / 50......1/2 in. to 15 miles = x inches to 50 miles cross multiply because this is a proportion (15)(x) = (50)(1/2) 15x = 25 x = 25/15 x = 5/3 or 1 2/3 inches <==
