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algol13
3 years ago
7

3y - x = 2 3y + x = 16

Mathematics
1 answer:
MrRissso [65]3 years ago
8 0

{y,x}={3,7}

hope this is helpful :)

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Can someone please help me out
Brums [2.3K]

Answer:

the answer I'd 1.008

Step-by-step explanation:

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8 0
3 years ago
How would I solve y-8+3(y+4)
konstantin123 [22]

Answer:

y-8+3y+12

4y+4

Step-by-step explanation:

y-8+3y+12

4y+4 is your answer

6 0
3 years ago
A person recently read that 84% of cat owners are women. How large a sample should the researcher take if she wishes to be 90% c
Lana71 [14]

Answer:

405

Step-by-step explanation:

To find sample size, use the following equation, where n = sample size, za/2 = the critical value, p = probability of success, q = probability of failure, and E = margin of error.

n=\frac{(z_{\frac{\alpha }{2} })^{2} *p*q  }{E^2}

The values that are given are p = 0.84 and E = 0.03.

You can solve for the critical value which is equal to the z-score of  (1 - confidence level)/2.  Use the calculator function of invNorm to find the z-score.  The value will given with a negative sign, but you can ignore that.

(1 - 0.9) = 0.1/2 = 0.05

invNorm(0.05, 0, 1) = 1.645

You can also solve for q which is 1 - p.  For this problem q = 1 - 0.84 = 0.16

Plug the values into the equation and solve for n.

n =\frac{(1.645)^2*0.84*0.16}{(0.03)^2}\\n= 404.0997333

Round up to the next number, giving you 405.

6 0
3 years ago
Why did the kindergartener take her books to the zoo
Shalnov [3]
So the kindergartner could show animals pictures. XD JK 

3 0
3 years ago
HEWWWWLPPPP<br><br><br>OPTION :<br><br>A. 52y 8m<br>B. 57y 8m<br>C. 50y 6m<br>D. 45y 6m​
vodomira [7]
I think it c 50y and 6m
3 0
2 years ago
Read 2 more answers
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