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Leona [35]
3 years ago
13

The cost function of a corn stand is C = 6n + 200, where n is the number of buckets of corn sold. The revenue function of this c

orn stand is r = 14n. Create a graph to show each of these functions. According to your graph, what is the break-even point for this corn stand?
A. n = 14
B. n = 6
C. n = 25
D. n = 28
Mathematics
2 answers:
guapka [62]3 years ago
6 0

Answer:

25

Step-by-step explanation:


Nikolay [14]3 years ago
3 0

Answer: Option 'C' is correct.

Step-by-step explanation:

Since we have given that

Cost function is defined as C = 6n+200

and Revenue function is defined as R = 14n

Since we need to find the break even point.

And we know that at break even point, C(x)= R(x).

6n+200=14n\\\\200=14n-6n\\\\200=8n\\\\n=\dfrac{200}{8}\\\\n=25

So, At n=25, there is the break even point for this corn stand.

Hence, Option 'C' is correct.

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3 years ago
A local artist working at the town fair makes caricatures and portraits. The caricatures cost $4 to make white
il63 [147K]

Answer:

The artist should make 15 caricatures and 30 portraits.

Step-by-step explanation:

First, we identify the variables for the problem. In this case, the variables will be:

C=number of caricatures

P= number of portraits.

Next, we can use the variables to make the inequalities that constrain the problem.

We know the artist can't spend more than $360 for supplies and we also know that it costs $4 to make a caricature and $10 to make a portrait, so:

4C+10P\le 360

We also know the artist has a limit of time of 20 hours, which is the same as 20*60=1200 minutes to paint. We know it takes her 20 minutes to make a caricature and 30 minutes to make a portrait, so:

20C+30P\le 1200

and we also know she must make a positive number of caricatures and a positive number of portraits so the other two constrains are:

C\ge 0

P\ge 0

So we can go ahead and graph them. (see attached picture)

Once we graphed the inequalities we can determine what the corners of the polygon created by the intersection of the shaded areas are, so we proceed and calculate them:

first point:

(0,0)

second point:

4(0)+10P=360

P=\frac{360}{10}

P=36

(0,36)

Third point:

20C+30(0)=1200

C=\frac{1200}{20}

C=60

(60,0)

Fourth point:

4C+10P = 360

20C+30P = 1200

We multiply the first equation by -5 so we get:

-20C-50P=-1800

20C+30P=1200

------------------------

-20P=-600

P=30

so:

20C+30(30)=1200

20C=1200-900

20C=300

C=15

(15,30)

Once we found the 4 points, we go ahead and evaluate them for the objective function. In this case, the objective function is the total amount of money she got from selling the pieces of art, so we get:

I=10C+20P

Point 1

I=10(0)+20(0)=0

Point 2

I=10(0)+20(36)=720

Point 3

I=10(60)+20(0)=600

Point 4

I=10(15)+20(30)=750

Next, we look for the greatest income which in this case will be 750 so that's why she must make 15 caricatures and 30 Portraits.

8 0
3 years ago
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