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timurjin [86]
2 years ago
10

Will give brainliest!!

Mathematics
1 answer:
olga_2 [115]2 years ago
3 0

Answer:

B

Step-by-step explanation:

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What us 1/10 of 3,000
s344n2d4d5 [400]

1/10 of 3,000 is 300. Just divide by 10 to get the answer

5 0
2 years ago
4.7j-6.8k when j =5 and k =3
Oksanka [162]

Answer:

Your answer is 3.1

Step-by-step explanation:

Wherever you see j, substitute 5.  Wherever you see k, substitute 3

1.  Set up:  4.7(5)-6.8(3)

2.  Multiply 4.7 * 5, to get 23.5

3.  Multiply 6.8 * 3 to get 20.4

4.  Subtract 23.5-20.4

5.  Final anwer - 3.1

Hope this helps!

5 0
2 years ago
The mean cost of a five pound bag of shrimp is 40 dollars with a standard deviation of 7 dollars. If a sample of 51 bags of shri
eimsori [14]

Answer:

P(|\bar{x}-40| > 0.6)=0.5404

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 40 dollars

Standard Deviation, σ = 7 dollars

Sample size,n = 51

We are given that the distribution of cost of shrimp is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

Standard error due to sampling =

=\dfrac{\sigma}{\sqrt{n}} = \dfrac{7}{\sqrt{51}} = 0.9801

P(sample mean would differ by true mean by more than 0.6)

P(|\bar{x}-40| > 0.6)\\\Rightarrow = 1-P(39.4

P(39.4 \leq x \leq 40.6) \\\\= P(\displaystyle\frac{39.4 - 40}{0.9801} \leq z \leq \displaystyle\frac{40.6-40}{0.9801})\\\\ = P(-0.6121 \leq z \leq 0.6121)\\= P(z \leq 0.6121) - P(z < -0.6121)\\= 0.7298 - 0.2702 =0.4596

P(|\bar{x}|-40 > 0.6)\\= 1-0.4596=0.5404

0.5404 is the required probability.

4 0
3 years ago
Heather can complete two problems in ten minutes, and when she started she had three problems done. joel can complete three prob
zzz [600]
 heather can do 2 problems in 10 minutes....60 minutes in an hr
2/10 = x / 60...2 problems to 10 min = x problems to 60 min
10x = 120
x = 120/10
x = 12....so she can do 12 problems in 1 hr

Joel can complete 3 problems in 15 minutes...
3/15 = x / 60
15x = 180
x = 180/15
x = 12....so he can do 12 problems in 1 hr

so 24 problems can be done in 1 hr

Heather started with 3 problems done and Joel started with 2 problems done....added = 5 problems already done

and it is asking between 30 and 50 hrs.....so there is no equal sign in ur problem

ur answer is : 30 < 24x + 5 < 50 <==




5 0
2 years ago
Make P the subject.<br> Q = 3P + 2
Ne4ueva [31]

Answer:

P = \frac{Q-2}{3}

Step-by-step explanation:

Q = 3P + 2 ( subtract 2 from both sides )

Q - 2 = 3P ( isolate P by dividing both sides by 3 )

\frac{Q-2}{3} = P

4 0
1 year ago
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