SOLUTION: In a triangle, the sides are in a ratio of 3:4:5 and the perimeter is 60in. What's the measurement of each side?? HELP!

To divide a number in N into three parts in the ratio of a:b:c

first part = ×N
second part = ×N
third part = ×N

To divide a perimeter 60 into three sides in the ratio of 3:4:5

first side = ×60 = ×60 = ×60 = 15
second side = ×60 = ×60 = ×60 = 20 
third side = ×60 = ×60 = 25

Edwin