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Natali5045456 [20]
3 years ago
9

Avin and andrea are two of the children in the jones family gavin has as many brothers as sister andrea has twice as many as man

y brothers as sisters. how many children are in the jones family
Mathematics
1 answer:
nalin [4]3 years ago
5 0
I think is 8
I hope this work for u
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Need help on this question ASAP.
chubhunter [2.5K]
I think its b that what it looks like to me
i hope this helps

8 0
3 years ago
How many weeks of data must be randomly sampled to estimate the mean weekly sales of a new line of athletic footwear? We want 98
Irina18 [472]

Answer:

n=(\frac{2.33(1400)}{400})^2 =66.50 \approx 67

So the answer for this case would be n=67 rounded up

Step-by-step explanation:

Information given

\bar X represent the sample mean for the sample  

\mu population mean

\sigma=1400 represent the sample standard deviation

n represent the sample size  

Solution to the problem

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}    (a)

And on this case we have that ME =400 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (b)

The critical value for 98% of confidence interval now can be founded using the normal distribution. And the critical value would be z_{\alpha/2}=2.33, replacing into formula (b) we got:

n=(\frac{2.33(1400)}{400})^2 =66.50 \approx 67

So the answer for this case would be n=67 rounded up

8 0
3 years ago
Solve the following equation <br><br> 1/x-1+1/x+2=3
disa [49]

Answer:

x = 1

Step-by-step explanation:

Solve for x over the real numbers:

-1 + 2 + 1/x + 1/x = 3

-1 + 2 + 1/x + 1/x = 1 + 2/x:

1 + 2/x = 3

Bring 1 + 2/x together using the common denominator x:

(x + 2)/x = 3

Multiply both sides by x:

x + 2 = 3 x

Subtract 3 x + 2 from both sides:

-2 x = -2

Divide both sides by -2:

Answer:  x = 1

6 0
3 years ago
24 + 8x =<br><br> Can someone please help mehhh!
Strike441 [17]

Answer:

32x

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
There are_____in the listening process
valentina_108 [34]

Answer:

5 steps.

Step-by-step explanation:

  • Recieving
  • Understanding
  • Evaluating
  • Remembering
  • Responding

hope it helps!

6 0
3 years ago
Read 2 more answers
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