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Degger [83]
3 years ago
8

If you draw three cards from a regular deck of 52 cards, what are the chances they are all hearts?

Mathematics
2 answers:
lbvjy [14]3 years ago
8 0
There are 13 hearts in a deck of 52 cards. So the probability of drawing a heart is 13/52 or 1/4. To find out what the chances of all three being hearts, we can multiply this probability:

\sf\dfrac{13}{52}\times\dfrac{12}{51}\times\dfrac{11}{50}\rightarrow\boxed{\sf\dfrac{11}{850}}

So the chances that all three cards will be hearts is 11/850.
Anna71 [15]3 years ago
6 0
Total number of cards = 52
Total number of hears = 13

Assuming the cards drawn are not replaced:
P(3 hearts) = (13/52)(12/51)(11/50) = 11/850

Answer: 11/850
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Write -7.32 as a Fraction/Mixed Number In Simplest Form. Also Show Steps To How You Got To Your Answer.
Mamont248 [21]

To write 7.32 as a fraction you have to write 7.32 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.

7.32 = 7.32/1 = 73.2/10 = 732/100

And finally we have:  

7.32 as a fraction equals 732/100

7 0
3 years ago
Multiply. (-5 5/8) • (-2 1/3) What is the product?​
lions [1.4K]

Answer:

105/8 = 13 1/8 = 13.125

Step-by-step explanation:

The first step is to turn the (-5 5/8) into a mixed number. The mixed number you should be getting is - 45/8. The second step is to convert the (-2 1/3) into a mixed number as well, your second mixed number should be -7/3. Next multiply the two fractions, - 45/8 x (-7/3) = 315/24.

We can simplify 315/24 by dividing by 3, so you'll divide 315 divided by 3 and 24 divided by 3 and you should get ... 105/8. So 105/ 8 is equal to

13 1/8. If you need this fraction in decimal form it is 13.125.

6 0
1 year ago
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belka [17]

Answer:

260 / 5 = 52

Step-by-step explanation:

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8 0
3 years ago
Please help with this 3a² = 27. Find a
Ivahew [28]

Answer:

a = 3

Step-by-step explanation:

3 {a}^{2}  = 27 \\  \frac{3 {a}^{2} }{3}  =  \frac{27}{3}  \\  {a}^{2}  = 9 \\ a =  \sqrt{9}  \\ a = 3

6 0
3 years ago
Read 2 more answers
100pts to answer this math (statistics/probability) question.
nalin [4]

<em>a</em> = 8 - a train arrives at the station once every 8 minutes, so for any given 8 minute interval, a randomly selected train has uniform probability of arriving at the station at some point in this time.

<em>f(x)</em> = 1/8 - the area under the graph of <em>f(x)</em> must be equal to 1. This area corresponds to a rectangle with length <em>a</em> = 8 and height <em>x</em> such that 8<em>x</em> = 1. Solving for <em>x</em> gives 1/8.

<em>P</em> = 5/8 - this is equal to the area under the graph over the interval [0, 5], which is the area of a rectangle with length 5 and height 1/8.

7 0
3 years ago
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