Karen runs 3 miles in 28 minutes. At this rate, how many miles would she run in 42 minutes

Answer 1

3/28 = M/42

3/14 = M/21

3/2 = M/3

M = 9/2 = 4.5 miles in 42 minutes

42 minutes is 1.5 times 28 minutes, so she runs 1.5 times as far: 1.5 x 3 = 4.5 miles