An envelope is classified as a large envelope if the length exceeds 11.5 inches . What is the length of the envelope shown? Roun
d to the nearest tenth
1 answer:
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Answer:
The Probability found is:
P =
Step-by-step explanation:
Let x be the 10 cents coin.
Let y be the 25 cents coin.
We have to find all the possible outcomes
1) First coin = 10 cents, Second coin = 10 cents , so
(x,x) = 20
2) First coin = 10 cents, Second coin = 25 cents , so
(x,y) = 35
3) First coin = 25 cents, Second coin = 10 cents , so
(y,x) = 35
4) First coin = 25 cents, Second coin = 25 cents , so
(y,y) = 50
Find the probability of each outcome:
P(x,x) =
P(x,y) =
P(y,x) =
P(y,y) =
Add all the probabilities where sum is at least 35 i.e P(x,y) , P(y,x) , P(y,y)
P(x,y) + P(y,x) + P(y,y) =
