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3 years ago

11

Suppose you have a standard deck of 52 cards. What is the probability that if you select a card at random that it does not have

a face value of 3?
Round your answer to two decimal places.

1 answer:

dimaraw [331]3 years ago

8 0

I have no idea if i’m honest

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Divide and simplify 5/12÷20/36

gregori [183]

Hello there! The formula for dividing fraction is keep, change, flip. You keep the first fraction the same, change division into multiplication, and flip the second fraction over by its reciprocal. In this case, 5/12 remains the same, division becoems multiplication, and 20/36 flips over to become 36/20. So the expression becomes this:

5/12 * 36/20

Now, we multiply straight across. 5 * 36 is 180. 12 * 20 is 240. 180/240 is 3/4 in simplest form. There. The quotient is 3/4.

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Let a, n, b, r, and k be integers. If a = nb+r and k|a and k|b, then k|r

Kryger [21]

Answer:

Proof for $k|r$

Step-by-step explanation:

We are given that a, n, b, r and k are integers.

Also,

$a = nb + r$

Since k divides a and b, we can write,

a = rk and b = sk, where r and s are integers.

Now, we have to prove that k divides r as well that is $k|r$

Putting value of a and b in the equation, we get:

$rk = n(sk) + r\\r = rk - nsk\\r = (r-sn)k$

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Answer:

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