34/100
= 0.34
3 tenths, 4 hundreths
Answer:
![P =4.83\%](https://tex.z-dn.net/?f=P%20%3D4.83%5C%25)
Step-by-step explanation:
First we calculate the number of possible ways to select 2 cards an ace and a card of 10 points.
There are 4 ace in the deck
There are 16 cards of 10 points in the deck
To make this calculation we use the formula of combinations
![nCr=\frac{n!}{r!(n-r)!}](https://tex.z-dn.net/?f=nCr%3D%5Cfrac%7Bn%21%7D%7Br%21%28n-r%29%21%7D)
Where n is the total number of letters and r are chosen from them
The number of ways to choose 1 As is:
![4C1 = 4](https://tex.z-dn.net/?f=4C1%20%3D%204)
The number of ways to choose a 10-point letter is:
![16C1 = 16](https://tex.z-dn.net/?f=16C1%20%3D%2016)
Therefore, the number of ways to choose an Ace and a 10-point card is:
![4C1 * 16C1 = 4 * 16 = 64](https://tex.z-dn.net/?f=4C1%20%2A%2016C1%20%3D%204%20%2A%2016%20%3D%2064)
Now the number of ways to choose any 2 cards from a deck of 52 cards is:
![52C2 =\frac{52!}{2!(52-2)!}](https://tex.z-dn.net/?f=52C2%20%3D%5Cfrac%7B52%21%7D%7B2%21%2852-2%29%21%7D)
![52C2 = 1326](https://tex.z-dn.net/?f=52C2%20%3D%201326)
Therefore, the probability of obtaining an "blackjack" is:
![P = \frac{4C1 * 16C1}{52C2}](https://tex.z-dn.net/?f=P%20%3D%20%5Cfrac%7B4C1%20%2A%2016C1%7D%7B52C2%7D)
![P = \frac{64}{1326}](https://tex.z-dn.net/?f=P%20%3D%20%5Cfrac%7B64%7D%7B1326%7D)
![P = \frac{32}{663}](https://tex.z-dn.net/?f=P%20%3D%20%5Cfrac%7B32%7D%7B663%7D)
![P =0.0483](https://tex.z-dn.net/?f=P%20%3D0.0483)
![P =4.83\%](https://tex.z-dn.net/?f=P%20%3D4.83%5C%25)
What 2 numbers whose sum is 105.7 the numbers are 19, 85.2, 533, 571, 88.2, 525, 20, 17.5, 400, 261, 20.5 ,125, 7, 23, 901, 30
givi [52]
To make it quickly we can consider only those numbers which will give us a decimal of xxx.7. There are only a few numbers like this: 85.2, 88.2, 20.5.
I tried adding 85.2 to 17.5 and it gave me 102.5 - it was close but not close enough :)
So I picked 85.2 + 20.5 = 105.7 and voila :)
N+-6=11 Write the original equation.
+6 +6 Add 6 to both sides.
N=17 This is the answer.
The answer is
A. {1, 3, 6}
100% Verified!
Hope This Helps!