SOLUTION: A sack contains red and blue marbles. The ratio of red marbles to blue marbles is 4:3. If there are 18 blue marbles in the sack, how many red marbles are in the sack?

Algebra ->  Algebra  -> Percentage-and-ratio-word-problems -> SOLUTION: A sack contains red and blue marbles. The ratio of red marbles to blue marbles is 4:3. If there are 18 blue marbles in the sack, how many red marbles are in the sack?       Log On

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Question 182714: A sack contains red and blue marbles. The ratio of red marbles to blue marbles is 4:3. If there are 18 blue marbles in the sack, how many red marbles are in the sack?
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
4%2F3=x%2F18
:
3x=72
:
highlight%28x=24%29red marbles