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Lyrx [107]
3 years ago
11

8- 5 (a + b) + 3 (a - 2b)

Mathematics
1 answer:
Alexeev081 [22]3 years ago
7 0

Answer: 8-2a-11b

.....

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In your top dresser drawer are 6 blue socks and 10 grey socks, unpaired and mixed up. one dark morning you pull two socks from t
beks73 [17]
We'll use the formula for the classical probability as follows.

P(A) = Number of outcomes favorable for A / Total number of possible outcomes

In this case, two socks are randomly drawn from a set of 6+10 = 16 socks. So the total number of possible outcomes = 16C2 = 120.

The two stocks match each other if they are both blue or grey. So the number of favorable outcomes is 6C2 + 10C2 = 15 + 45 = 60.

Hence the probability that the two stocks match is \frac{60}{120}=0.5.
4 0
3 years ago
Can someone please answer this
user100 [1]

Answer:

x = 100

It is on a straight line and so, it equals to 180.

180 - 80 = 100

5 0
2 years ago
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shtirl [24]

Answer: 100 rides are needed to break even.

Step-by-step explanation:

C(x)=15x+2000 - x is the number of rides.

R(x)=35 x , where x is the number of rides

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20x=2000 ~simplify~

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5 0
2 years ago
. What is the negative solution to this equation?<br> 8x2 – 4x = 363
stiv31 [10]

Answer:

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Step-by-step explanation:

8 × 2 – 4x = 363

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Subtract 16 from each side:

16 - 16 - 4x = 363 - 16

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Divide each side by 4:

- 4x  ÷ 4 = 327 ÷ 4

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8 0
3 years ago
A bag of marbles has 6 red marbles and 7 green marbles in it. What is the percent probability of pulling a green marble out of t
soldi70 [24.7K]

Answer:

If a bag contains 4 red marbles, 3 blue marbles, and 7 green marbles and a marble is randomly selected from the bag, what is the probability that it is blue? P=3/(3+4+7)=3/14 because each of 14 marbles is equally likely to be drawn.

Step-by-step explanation:

7 0
3 years ago
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