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2 years ago

Please help, ill give brainliest!

Mathematics

1 answer:

grigory [225]2 years ago

6 0

Answer:

x=18 y=9

Step-by-step explanation:

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ANSWER #6 TO BE MARKED AS BRAINLIEST

Alina [70]

I believe its 137/60

3 0

3 years ago

Read 2 more answers

The probability of winning a certain lottery is 1/77076 for people who play 908 times find the mean number of wins

Alex73 [517]

The mean is 0.0118 approximately. So option C is correct

<h3><u>Solution:</u></h3>

Given that , The probability of winning a certain lottery is $\frac{1}{77076}$ for people who play 908 times

We have to find the mean number of wins

$\text { The probability of winning a lottery }=\frac{1}{77076}$

Assume that a procedure yields a binomial distribution with a trial repeated n times.

Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial.

$n=908, \text { probability } \mathrm{p}=\frac{1}{77076}$

$\text { Then, binomial mean }=n \times p$

$\begin{array}{l}{\mu=908 \times \frac{1}{77076}} \\\\ {\mu=\frac{908}{77076}} \\\\ {\mu=0.01178}\end{array}$

Hence, the mean is 0.0118 approximately. So option C is correct.

4 0

3 years ago

before sales tax,the classical music CD cost $15.Jan gave the clerk a $20 bill and recieved $4.17 change.what is the rate of sal

Harman [31]

B.4% at least that's what I got lol I did it at least twice in my head

6 0

3 years ago

25 points!!!

professor190 [17]

Answer:

x+y=12

Step-by-step explanation:

First, substitute 3y for the spots with x:

2(3y) + 2y = 24

6y+ 2y = 24

8y= 24

y= 3

Then sub in 3 in the y place:

x= 3(3)

x= 9

Then plug in the x and y values in the equation:

9 + 3 =12

Good Luck!!!

plz mark me Brainliest!

3 0

2 years ago

- 7 x - 4 y = - 12 <br> - 3 x + y = - 16

LenaWriter [7]

The answer is x=4 and y=-4

4 0

3 years ago