SOLUTION: An urn contains red, blue, and yellow balls. There are three times as many red balls as yellow balls, and half as many yellow balls as blue balls. If there are 84 balls in the urn,

Algebra ->  Probability-and-statistics -> SOLUTION: An urn contains red, blue, and yellow balls. There are three times as many red balls as yellow balls, and half as many yellow balls as blue balls. If there are 84 balls in the urn,      Log On


   



Question 469991: An urn contains red, blue, and yellow balls. There are three times as many red balls as yellow balls, and half as many yellow balls as blue balls. If there are 84 balls in the urn, how many are blue?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
blue=2 yellow
red=3 yellow
yellow+blue+red=84
y+2y+3y=84
6y=84
y=14
There are 14 yellow balls, 28 blue balls, and 42 red balls in the urn..