SOLUTION: The ratio of red marbles to green marbles in a package is 3 to 5. If 25 green marbles are in the package, how many red are in the package?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: The ratio of red marbles to green marbles in a package is 3 to 5. If 25 green marbles are in the package, how many red are in the package?       Log On


   

Question 244453: The ratio of red marbles to green marbles in a package is 3 to 5. If 25 green marbles are in the package, how many red are in the package?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3/5=x/25 cross multiply.
5x=3*25
5x=75
x=75/5
x=15 red marbles in the package.