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3 years ago

Solve 67=n +18

Mathematics

1 answer:

Margaret [11]3 years ago

8 0

The answers are n = 49, x = 59 and y = 9.

Step-by-step explanation:

Keep the unknown terms on one side and constant terms on other side to solve the given expressions.

1) Solve 67=n +18

n = 18 - 67

n = 49

2) Solve x-16=43

x = 43 + 16

x = 59

3) Solve 54=6y

6y = 54

y = 54/6

y = 9

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Answer:

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Step-by-step explanation:

We are given that a gambler has been dealt five cards—two aces, one king, one 3, and one 6. He discards the 3 and the 6 and is dealt two more cards.

We have to find the probability that he ends up with a full house (3 cards of one kind, 2 cards of another kind).

We know that gambler will end up with a full house in two different ways (knowing that he has given two more cards);

If he is given with two kings.
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Now, there are three kings and two aces left which means at the time of drawing cards from the deck, the available cards will be 47.

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= $\frac{3!}{2! \times 1!}\times \frac{2! \times 45!}{47!}$ {∵ $^{n}C_r = \frac{n!}{r! \times (n-r)!}$ }

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