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mojhsa [17]
3 years ago
8

X + y = 8 3x - y = 12

Mathematics
1 answer:
Virty [35]3 years ago
7 0

Answer:

x = 5 and y = 3

Step-by-step explanation

y crosses out so you are left with

4x = 20 (divide by 4)

x = 5

plug x into either equation

5 + y = 8 (subtract 5)

y = 3

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Suppose that you draw two cards from a deck. After drawing the first card, you do not put the first card back in the deck. What
S_A_V [24]

Answer:

(B) 0.0588

Step-by-step explanation:

The probability is calculated as a division between the number of possibilities that satisfy a condition and the number of total possibilities. Then, the probability that the first card is diamonds is:

P_1=\frac{13}{52}

Because the deck has 52 cards and 13 of them are diamonds.

Then, if the first card was diamonds, the probability that the second card is also diamond is:

P_2=\frac{12}{51}

Because now, we just have 51 cards and 12 of them are diamonds.

Therefore, the probability that both cards are diamonds is calculated as a multiplication between P_1 and P_2. This is:

P=\frac{13}{52}*\frac{12}{51}=\frac{1}{17}=0.0588

8 0
3 years ago
I'LL GIVE YOU 20 POINTS AND BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!
son4ous [18]

Answer:

Step-by-step explanation:

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7 0
3 years ago
During the World Series the host Citywide Hotel a occupancy Rose 21% over the prior busiest night if the busiest night had been
Natalka [10]

Answer:

The new record was 91.96%.

Step-by-step explanation:

As per the given statement: During the World Series the host Citywide Hotel a occupancy Rose 21% over the prior busiest night if the busiest night had been 76% occupancy.

To find the new record of occupancy.

We will find the 21% of 76% and then added it to 76%.

\text{New record} = \text{old record} + \text{Increase in record}

New record = 76\% +(21\% \times 76\%)

New record = \frac{76}{100} +(\frac{21}{100}\times \frac{76}{100})

New record = 0.76 + (0.21 \times 0.76) = 0.76 + 0.159 = 09196

Convert this decimal number into percentage by just multiplying a number by 100 we get;

New record = 0.9196 \times 100 = 91.96\%

Therefore, the new record was 91.96%


4 0
3 years ago
What is the pair of vertical angles.
kobusy [5.1K]

Answer:

C.

Step-by-step explanation:

8 0
3 years ago
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PLEASE HELP PLEASE
Dmitrij [34]
The answer is $3000. You first want to set up a proportion, so 750/9000=1000/x. Then you will cross multiply to get (9000)(1000)=750x. Divide both sides and you will get x=12000. However, the question is asking how much is remaining, so we want to find the difference of 12000 and 9000, which ends up being $3000.
3 0
3 years ago
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