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irakobra [83]
4 years ago
11

4c+5y=-9, 6x-3y=24 find x and y

Mathematics
1 answer:
My name is Ann [436]4 years ago
4 0

Answer:

x=1/2y+4

Step-by-step explanation:

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A business knew that 30%, percent of its customers were less than 25 years old. The business wanted to increase this percentage,
jeyben [28]

Answer:

The answer is "0.9258201 or \bold{ \frac{0.36 -0.3}{\sqrt{\frac{0.3 \times 0.7 }{50}}}}".

Step-by-step explanation:

\to P= 30 \ \%\\\\ \to  x= 18 \\\\ \to n=50\\\\\\\hat p= \frac{x}{n} = \frac{18}{50} = 0.36 \\\\\bold{Formula:}\\\\X= \frac{\hat p -p}{\sqrt{\frac{p \times (1-p)}{n}}}\\\\

    = \frac{0.36 -0.3}{\sqrt{\frac{0.3 \times (1-0.3)}{50}}}\\\\= \frac{0.36 -0.3}{\sqrt{\frac{0.3 \times 0.7 }{50}}}\\\\= \frac{0.36 -0.3}{\sqrt{\frac{0.21}{50}}}\\\\= \frac{0.06}{\sqrt{0.0042}}\\\\= \frac{0.06}{0.064807407}\\\\= 0.9258201

3 0
3 years ago
How can i find The function of f(x) = 150 (1.3)^t
natka813 [3]

Answer:

See below.

Step-by-step explanation:

In comments, you said you wanted it graphed.

If it says f(x) on the left side, the equation should have an 'x' on the right side, so something is fishy here.

But, in an effort to try and help you ....

With the data you have given, I would graph it just like y = 150 (1.3)^x

You can pick various values for x, like -3,-2,-1,0,1,2,3 and see what y is for each one, then plot the points on graph paper.

If x = 0, y= 150(1.3)^0 = 150(1) = 150  because anything to power zero is 1

If x = -1, y= 150(1.3)^(-1) = 150(1/1.3) ≈ 132.7

If x = +1, y= 150(1.3)^(1) = 150(1.3) = 195

And so on.

I did the graph on DESMOS and it has a very large scale.

4 0
3 years ago
Factoring review. factor the following polynomials by determining a gcf. 21x-15y
butalik [34]
The GCF of 21 and 15 is 3. The are no variables in common so the factor =
3(7x -5y)
3 0
3 years ago
Afton mad a chicken dish for dinner. She added a 10 ounce package of vegatables and and a 14 ounce package of rice to 40 ounces
Cerrena [4.2K]

Answer:

4

Step-by-step explanation:

add the numbers up

you get 64

one pound is 16 ounces so divide 64 by 16 and you get four pounds

7 0
3 years ago
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How many solutions does this equation have?<br><br> –4j = –8j + 4j
emmainna [20.7K]

Answer:

Your Mom just remember your a di*k and thats why your parents burned your birth certifcate

Step-by-step explanation:

if your gonna do that to me, remember i have copy and paste<3.

5 0
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