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NeTakaya
2 years ago
9

If 100 people have a certain disease out of 7,800,000,000 people. Then what percentage of the people have that disease

Mathematics
1 answer:
NARA [144]2 years ago
8 0

Answer:

b = 100 * 100

7.8

= 10000

7.8

= 50000

39

= 1282.05128%

Step-by-step explanation:

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If 70g is 100%.... 48g is taken away... what is the percentage of the remaining 22g. Rounded to the nearest whole number?
Ivenika [448]

we are given with 70 grams and is said that 48 grams is taken away. This is equal to 22 grams. To find the mass percentage, we divide the remaining mass and divide by the total mass. The remaining 22 grams is equal to 22/70 * 100 percent equal to 31.43 percent. 
8 0
3 years ago
A sample is selected from a population with μ = 46, and a treatment is administered to the sample. After treatment, the sample m
Georgia [21]

Answer:

0.5

Step-by-step explanation:

Solution:-

- The sample mean before treatment, μ1 = 46  

- The sample mean  after treatment, μ2 = 48

- The sample standard deviation σ = √16 = 4

- For the independent samples T-test, Cohen's d is determined by calculating the mean difference between your two groups, and then dividing the result by the pooled standard deviation.

                           Cohen's d = \frac{u2 - u1}{sd_p_o_o_l_e_d}

- Where, the pooled standard deviation (sd_pooled) is calculated using the formula:

                          sd_p_o_o_l_e_d =\sqrt{\frac{SD_1^2 +SD_2^2}{2} }

- Assuming that population standard deviation and sample standard deviation are same:

                          SD_1 = SD_2 =  σ = 4

- Then,

                           sd_p_o_o_l_e_d =\sqrt{\frac{4^2 +4^2}{2} } = 4

- The cohen's d can now be evaliated:

                          Cohen's d = \frac{48 - 46}{4} = 0.5

6 0
3 years ago
3x+2y=4 <br> 4x+5y=17<br> What is the value of x and y?
Fudgin [204]
{3x+2y=4    /*5
{4x+5y=17    /*(-2)

{15x+10y=20
<u>{-8x-10y=-34        </u>(+)
<em>7x=-14</em><em />
<em>x=-2</em>

15x+10y=20
15*(-2)+10y=20
-30+10y=20
10y=50
<em>y=5</em>

5 0
3 years ago
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olya-2409 [2.1K]

Monday: t minutes

Tuesday: t + 15 minutes

Wednesday: t minutes

Thursday: t minutes

Friday: t minutes

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65% of what number is 39
lys-0071 [83]
65% of 39 is 60 the answer is 60
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