one number is 1 less than a second number. twice the second number is 6 less than 4 times the first. find the two numbers.
1 answer:
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Answer:
\frac{17}{24}
Step-by-step explanation:
Given that Box 1 contains 2 red balls and 1 blue ball. Box 2 contains 3 blue balls and 1 red ball. A coin is tossed. If it falls heads up, box 1 is selected and a ball is drawn. If it falls tails up, box 2 is selected and a ball is drawn.
P(selecting Box 1) = 0.5 = P(selecting II box) (assuming a fair coin is tossed)
P(Red/Box I ) =
P(Red/Box II) =
Box 1 and Box 2 are mutually exclusive and exhaustive events.
So probability of selecting a red ball.
= probability of selecting a red ball from box 1 + probability of selecting a red ball frm box 2