SOLUTION: A bag of marbles has twice as many blue marbles as green marbles, and the bag has at least 18 marbles in it. At least how many green marbles does it have?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: A bag of marbles has twice as many blue marbles as green marbles, and the bag has at least 18 marbles in it. At least how many green marbles does it have?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 40611: A bag of marbles has twice as many blue marbles as green marbles, and the bag has at least 18 marbles in it. At least how many green marbles does it have?
Answer by gsmani_iyer(201) About Me  (Show Source):
You can put this solution on YOUR website!

Let the No.of green marbles be = x
So the No.of blue marbles is = 2x
The total No.of marbles = 2x + x = 3x
3x = 18 ... (Given)
So x = 18/3 = 6
So No.of green marbles = 6 and
the No. of blue marbles = 12. Answer.
gsm