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gymnast5464
02.07.2019 •
Mathematics
If we draw a card from a standard 52-card deck, what is the probability that the card is neither a heart nor a queen?
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Ответ:
So here we are being asked to draw a card that isn't a heart or a queen... the amount of cards that are not hearts or queens out of a 52 card deck is 36. So that makes the probability 36/52 if we want to make that a percent then we have to change the denominator to a 100 we end up with this problem:
36/52 = x/100
There are many ways we can solve this. One way being cross multiplying, which I think is the easiest.
If our problem is a/b = c/d we multiply a and d then we multiply b and c
Plugging our original problem into that, we 36 times 100 and 52 times x. That gives us 3600 and 52x
This is now an algebraic problem.
52x=3600
First step, divide each side by 52
We get x=69.2 rounded to the nearest tenth.
So our probability is about 69/100 or 69%
Any Questions?
Ответ:
proability is (desired outcomes)/(total possible outcomes)
total possible outcomes is 52 cards
out of those 52 cards, how many are NOT heart or queen?
hearts is a suit, so 1/4 of the deck (or 52/4=13 cards) are not what we want
queens, there are 4 queens in a deck, but one of them is a queen of hearts. to avoid doublecount, say 3 queens
so total of 13+3=16 cards to not pick
so we have 52-16=36 cards we want to pick
probablity=36/52=18/26=9/13≈63.23%
Ответ:
yaas
Step-by-step explanation: