Well the math comes out to 1102.31 pounds thats a bit unrealistic but i'm fairly sure i converted correctly.
There are 12 white ribbons, 15 red ribbons, and 11 blue ribbons.
38=(w-1)+(w+3)+w
combine like terms
38=2+3w
subtract 2 from both sides
36=3w
divide 3 on both sides
12=w
w-1=b
12-1=b
11=b
w+3=r
12+3=r
15=r
Check Your Work
w+r+b=38
15+11+12=38
38=38
1900 ml because 100 mL =a L
His time on the treadmill was 28%
His fraction is 28/100 = 7/25 because both numerator and denominator can be divided by 4
