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alexdziob01
05.07.2019 •
Mathematics
Two cards are selected without replacement from a standard deck of 52 cards. what is the probability that both cards are the same color (i.e., either both black or both red)
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Ответ:
Second card to be selected and be the same colour=25/51
P=25/51
Ответ:
48/x = 64/100
This is because 48 is part of a whole and represents 64% of the original amount. We will now solve this problem. Cross multiply the values. 100 * 48 is 4,800. 64 * x is 64x. That makes 4,800 = 64x. Now, divide each side by 64 to isolate the x. 64x/64 cancels out. 4,800/64 is 75. Let's check this. 75 * 64% (0.64) is 48. There. The original price was $75.