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Paha777 [63]
3 years ago
12

I need help finding a solution to this equation: 5 (n-1/10)=1/2

Mathematics
1 answer:
Readme [11.4K]3 years ago
7 0

Answer:

n = 1/5

Step-by-step explanation:

Let's solve your equation step-by-step.

5(n− 1 /10 )= 1/ 2

Step 1: Simplify both sides of the equation.

5(n− 1 /10 )= 1 /2

(5)(n)+(5)( −1 /10 )= 1/2

(Distribute)

5n +  −1 /2 = 1 /2

Step 2: Add 1/2 to both sides.

5n +  −1 /2  +  1 /2  =  1 /2  +  1 /2

5n=1  

Step 3: Divide both sides by 5.

5n /5  =  1 /5

n=  1 /5

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Bobby is testing the effectiveness of a new cough medication. There are 100 people with a cough in the study. Seventy patients r
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Answer:

0.665

Step-by-step explanation:

Given:  100 people are split into two groups 70 and 30.  I group is given cough syrup treatment but second group did not.

Prob for a person to be in the cough medication group = 0.70

Out of people who received medication, 34% did not have cough

Prob for a person to be in cough medication and did not have cough

=\frac{0.70(34)}{60}=0.397


Prob for a person to be not in cough medication and did not have cough

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Probability for a person not to have cough

= P(M1C')+P(M2C')

where M1 = event of having medication and M2 = not having medication and C' not having cough

This is because M1 and M2 are mutually exclusive and exhaustive

SO P(C') = 0.397+0.2=0.597

Hence required prob =P(M1/C') = \frac{0.397}{0.597}=0.665

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3 years ago
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6)
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I go bowling every week and keep track of how many strikes i get: 2,0,4,7,7,0,1,0 Find the mode median and mean of this set of d
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Answer:

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  • <em>Median is 1 </em>
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Step-by-step explanation:

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  • <em>0, 0, 0, 1, 2, 4, 7, 7 = mode is 0</em>

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  • <em>To find the Median, place the numbers in value order and find the middle number.</em>
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<em></em>

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