SOLUTION: An urn contains x red balls and y green balls. if a ball is taken at random from the urn, the probability that it is red is 3/7. Write down an equation connecting x and y. if there

Question 1163122: An urn contains x red balls and y green balls. if a ball is taken at random from the urn, the probability that it is red is 3/7. Write down an equation connecting x and y. if there had been 5 more red balls, the probability would have been 1/2. find x and y.
Answer by Edwin McCravy(20054) (Show Source): You can put this solution on YOUR website!

Instead of doing your problem for you, I'll do one exactly like it with
different numbers.  I'll do this one instead:

An urn contains x red balls and y green balls. if a ball is taken at random
from the urn, the probability that it is red is 3/5. Write down an equation
connecting x and y. if there had been 6 more red balls, the probability
would have been 9/13. find x and y.

-----------------------------------------------
An urn contains x red balls and y green balls. if a ball is taken at random
from the urn, the probability that it is red is 3/5.






If there had been 6 more red balls, the probability would have been 9/13. find x and y.





Substituting 3y/2 for x in







Substituting 8 for y in






Edwin

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