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
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-> 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
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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):
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.
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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
