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klasskru [66]
3 years ago
15

I have a shuffled deck of 52 playing cards. A deck of cards has four different suits, with an even number of cards in each. I pi

ck a card at random. What is the probability of me picking any card which is in the spades suit, as a decimal?
Mathematics
1 answer:
zzz [600]3 years ago
6 0

Answer:

The probability is 0.25

Step-by-step explanation:

Here is a probability question.

We want to know the probability of picking a card which is in the spades suit.

Now, what we know is that there are a total of 52 cards and we have 4 suites.

Each suite have equal number of cards. So definitely the number of cards in the spades suit will be 52/4 = 13 cards

Thus, the probability of picking any card in the spades suit = number of cards in the spades suit/ Total number of cards in the deck

Mathematically that would be 13/52 = 1/4 = 0.25

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Twenty words were randomly selected from two textbooks. Each set gives the number of letters in each of the twenty words for tha
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Answer:

k = 13The smallest zero or root is x = -10

Step-by-step explanation:

you can write "x^2" to mean "x squared"

f(x) = x^2+3x-10

f(x+5) = (x+5)^2+3(x+5)-10 ... replace every x with x+5

f(x+5) = (x^2+10x+25)+3(x+5)-10

f(x+5) = x^2+10x+25+3x+15-10

f(x+5) = x^2+13x+30

Compare this with x^2+kx+30 and we see that k = 13

Factor and solve the equation below

x^2+13x+30 = 0

(x+10)(x+3) = 0

x+10 = 0 or x+3 = 0

x = -10 or x = -3

The smallest zero is x = -10 as its the left-most value on a number line.

7 0
3 years ago
Jim borrows $790 for 4 months. He pays a simple interest of 6%. How much interest must be pay? Around your answer to the nearest
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Answer:

189.6

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6 0
3 years ago
If john ran 5 kilometer marathon ,how long was that in meters
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3 years ago
Read 2 more answers
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