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GalinKa [24]
4 years ago
9

In a pet adoption center specializing dogs and cats, the ratio of dogs to cats is 3:7. What percentage of the total number of an

imals are dogs
Mathematics
1 answer:
DanielleElmas [232]4 years ago
7 0

Answer:

30%

Step-by-step explanation:

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Although not so common now, consider a phone plan that does not have unlimited texting. Your base plan costs you $30 a month and
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What is the probability that a five-card poker hand contains a flush, that is, five cards of the same suit?
Liono4ka [1.6K]

\displaystyle |\Omega|=\binom{52}{5}=\dfrac{52!}{5!47!}=\dfrac{48\cdot49\cdot50\cdot51\cdot52}{2\cdot3\cdot4\cdot5}=2598960\\ |A|=\binom{13}{5}\cdot4=\dfrac{13!}{5!8!}\cdot4=\dfrac{9\cdot10\cdot11\cdot12\cdot13}{2\cdot3\cdot4\cdot5}\cdot4=5148\\\\ P(A)=\dfrac{5148}{2598960}=\dfrac{33}{16660}\approx0.2\%

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