Question

on a certain map 2.5 inches represens 15 miles. bay city to greenwood are 4 inches apart what is the real distance in miles

Answer 1

Well, you know that if 2.5 inches equals 15 miles, 6 must equal one mile.
(6 times 2 equals 12, plus 3 which is .5 of 6, making 15.)
So you know that there are 6 miles every inch.
Therefore, 6 miles times 4 inches gets you 24 miles.
The answer is 24.