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ludmilkaskok [199]
3 years ago
11

The numerator of a certain fraction is four times the denominator. If 10 is added to both numerator and denominator the resultin

g fraction is equivalent to 2. What is the original fraction?
Mathematics
1 answer:
Ronch [10]3 years ago
7 0
20/5 4x/x adding 10 to each 4x+10/x+10 =2 Multiple x+10 to each side 4x+10=2x+20 Then subtract and get 2x=10 Divide X=5 Now plug it back in 20/5
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Consider a sampling distribution with p equals 0.12 and samples of size n each. Using the appropriate​ formulas, find the mean a
Mandarinka [93]
<h2>Answer with explanation:</h2>

Consider a sampling distribution with p equals 0.12 and samples of size n each.

Then, formula for mean = p

Formula for standard deviation= \sqrt{\dfrac{p(1-p)}{n}}

(a) For a random sample of size n equals 5000.

Mean = 0.12

Standard deviation= \sqrt{\dfrac{0.12(1-0.12)}{5000}}

\\\\0.00459565011723\approx0.0046

(b) For a random sample of size n equals 1000.

Mean = 0.12

Standard deviation= \sqrt{\dfrac{0.12(1-0.12)}{1000}}

\\\\=0.0102761860629\approx0.0103

(c) For a random sample of size n equals 500.

Mean = 0.12

Standard deviation= \sqrt{\dfrac{0.12(1-0.12)}{500}}

\\\\=0.0145327216997\approx0.0145

8 0
2 years ago
Solving Equations<br> ve<br> x + 14 = 7x + 32 - 3x
Mkey [24]

Answer:

-6

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

x+14=7x+32−3x

x+14=7x+32+−3x

x+14=(7x+−3x)+(32)(Combine Like Terms)

x+14=4x+32

x+14=4x+32

Step 2: Subtract 4x from both sides.

x+14−4x=4x+32−4x

−3x+14=32

Step 3: Subtract 14 from both sides.

−3x+14−14=32−14

−3x=18

Step 4: Divide both sides by -3.

−3x/−3=18/−3

x=−6

5 0
3 years ago
PLEASE ANSWER THIS!! 15 POINTS!<br><br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B3%7D" id="TexFormula1" title="\frac{2
dolphi86 [110]

Answer:

1 5/6

Step-by-step explanation:

Do 2/3 x 2/1 because 2/1 = 2 and you get 1 1/3. Make 1 1/3 into 1 2/6 (1/3 = 2/6) and add 3/6 (1/2 = 3/6)

4 0
3 years ago
Read 2 more answers
The origin has an ordered pair of ________.
KiRa [710]
(0, 0)
Hope this helps!
4 0
3 years ago
BRAINLIESTT ASAP! PLEASE HELP ME :)
Oduvanchick [21]

Answer:

\displaystyle symmetric

Step-by-step explanation:

Everything is distributed evenly on both ends.

I am joyous to assist you anytime.

8 0
3 years ago
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