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amid [387]
3 years ago
5

Marshal asks 50 people whether they are left-handed or right-handed. Five people said they were left-handed. The relative freque

ncy of a right-handed person is______ . From this data, the likelihood that a person chosen at random will be left-handed is________ .
Mathematics
2 answers:
Sunny_sXe [5.5K]3 years ago
4 0

Answer

1. 90%     2. 10%

Step-by-step explanation:

50 /10=5 which means that 5 people equal 1 percent

45/50=.9

.9*100=90 which is the percent of right handed people

frutty [35]3 years ago
3 0

Answer:

The first answer is .9

the second answer is unlikely  

Step-by-step explanation:

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Oxygen flows through one tube into a liter flask filled with air, and the mixture of oxygen and air (considered well stirred) es
yKpoI14uk [10]

The amount of oxygen in the flask through the intake tube illustrates proportions

The flask 99.35% will contain of oxygen after 5L have passed through the intake tube

<h3>How to calculate the percentage of oxygen?</h3>

To do this, we make use of the following representations

  • P for the proportion of oxygen
  • V for te volume of oxygen
  • x for the proportion of oxygen in the flask after 5 L passed through

So. we have the following derivative

dP = dV - P * dV

Divide through by dV

dP/dV  = 1 - P

Next, we set up the integral

\int\limits^x_{0.040}  \frac {1}{1 - P}dP= \int\limits^5_0 {dV}

Integrate both sides

-\ln(|P - 1|)|\limits^x_{0.04} = 5

Expand

-ln(|x - 1|) + ln(|0.04 - 1|) = 5

Evaluate the difference

-ln(|x - 1|) + ln(|-0.96|) = 5

Express as a fraction

ln(0.96/|x - 1|) = 5

Express both sides as exponents with a base of 2

e^ln(0.96/|x - 1|) = e^5

Solve for x

x = 1 - 0.96/e^5

Evaluate the difference

x = 0.9935

Express as percentage

x = 99.35%

Hence, the flask 99.35% will contain of oxygen after 5L have passed through the intake tube

Read more about proportions at:

brainly.com/question/1781657

3 0
2 years ago
Find the area please :)))
LUCKY_DIMON [66]

Answer:

area would be 98.35

Step-by-step explanation:

the area is 98.35 units squared

6 0
2 years ago
Owen had 18 guitars. He sold 5 guitars and kept the rest. What is the ratio of guitars he kept to guitars he sold?
Romashka [77]

Answer:

to get what he kept subtract 5 from 18, to get 13 so 13 was kept. the ratio will be kept:sold which is 13:5

3 0
3 years ago
Read 2 more answers
456,912-37,800 estimate
allsm [11]

i think it might be around 440,112

7 0
2 years ago
-2( -4x - 2 ) - 5x + 5 = -12
Sergio [31]

Answer:

use distributive and combine like terms

8 0
3 years ago
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