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Nataliya [291]
3 years ago
11

The cost in dollars for removing p percent of pollutants from a river in Smith County is?

Mathematics
2 answers:
ZanzabumX [31]3 years ago
5 0
Ok lets go ahead and see if the following answers can help:
<span>A) if p = 0.2 then C(p) = 157.52
B) if p = 0.95 then C(p) = 753.86
C) smallest p value that gives C(p) > or = 0. This is p = 0
D) largest INTEGER value for C(p) to exist or be >=0. This is p = 99. p = 100 gives 786000/0; does not exist. p > 101 starts giving negative numbers.
</span>I hope this has been of help
slamgirl [31]3 years ago
3 0

Answer:

1. The cost of removing 20% of pollutants is $19,650

2. The cost of removing 95% of pollutants is $1,493,400

3. Smallest value of p can be 0

4. Largest value of p can be 99


Step-by-step explanation:

The equation is  C(p)=\frac{78,600p}{100-p}

Where,

  • C(p) is the cost, and
  • p is the percent of pollutants

<u>Find the cost of removing 20%. </u>

We simply plug in 20 into p in the formula and get:

C(p)=\frac{78,600(20)}{100-20}=19,650

The cost of removing 20% of pollutants is $19,650


<u>Find the cost of removing all but 5% of the pollutants. </u>

This basically translates to removing 100-5=95%, so we simply plug in 95 into p int he formula and get:

C(p)=\frac{78,600(95)}{100-95}=1,493,400

The cost of removing 95% of pollutants is $1,493,400


<u>What is the smallest value p can be?</u>

We can opt to clean nothing, so p can be zero (0). p is the percent of pollutant to clean, so if we decide not to clean, then p can be 0. Hence, the smallest value of p is 0.


<u>What is the largest integer value p can be?</u>

Percent of pollutants to clean would be 100% (<em>theoretically</em>). But this would violate laws of arithmetic. Because if we were to use 100 in the formula, there would be division by 0, which isn't permitted. So the closest largest integer below 100 is 99. So the largest integer value of p is 99. <em>(anything over 100 doesn't make sense and is not feasible)</em>

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A survey with a two-point scale was conducted in an organization. It concluded that 85% of the respondents were unsatisfied with
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Answer:

Number of the peoples were satisfied with the career guidance are 300 .

Step-by-step explanation:

Formula

Percentage = \frac{Part\ value\times 100}{Total\ value}

As given

A survey with a two-point scale was conducted in an organization.

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If 2,000 people participated in the survey.

Total value = 2000

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Putting all the values in the formula

85 = \frac{Part\ value\times 100}{2000}

Part\ value= \frac{2000\times 85}{100}

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i.e

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People satisfied by the career guidance = Total people participated in survey  - People not satisfied by the career guidance .

Putting the values in the above

                                                                  = 2000 - 1700

                                                                  = 300

Therefore the number of the peoples were satisfied with the career guidance are 300 .


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Answer:

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Step-by-step explanation:

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Now to find the area we simply plug in these values into the formula

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