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frutty [35]
1 year ago
5

An online retail company determined that their cost for each day, x, can be determined by the function C(x) = 2x2 – 20x + 80 and

their revenue by the function R(x) = –x2 + 5x + 58. How many days will it take for the company to earn a profit?
Mathematics
1 answer:
sammy [17]1 year ago
7 0

The number of days the company earns a profit is the second day till the 7th day

<h3>How to determine the number of days the company earns a profit?</h3>

From the question, we have the following functions that can be used in our computation:

Cost function, C(x) = 2x2 – 20x + 80

Revenue function, R(x) = –x2 + 5x + 58

These functions can be properly represented as

Cost function, C(x) = 2x² – 20x + 80

Revenue function, R(x) = –x² + 5x + 58

When the company makes a profit, the revenue of the company exceeds the cost

This means that

R(x) > C(x)

Substitute the known values in the above equation, so, we have the following representation

–x² + 5x + 58 > 2x² – 20x + 80

Evaluate the like terms

–3x² + 25x - 22 > 0

Expand

–3x² + 3x + 22x - 22 > 0

Factorize the inequality

–3x(x - 1) + 22(x - 1) > 0

So, we have

(-3x + 22)(x - 1) > 0

This gives

-3x + 22 > 0 and x - 1 > 0

Evaluate

-3x > -22 and x > 1

Divide

x < 7.3 and x > 1

This can be combined as

1 < x ≤ 7

Hence, the company makes profit from the second day till the 7th day

Read more about profit functions at

brainly.com/question/25638609

#SPJ1

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Sarah and Noah work at read on bookstore and get paid the same hourly wage. The table shows their work schedule for last week.
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2 years ago
To make a sports drink for the football team, Jaylen filled \dfrac9{10}
Scilla [17]

The total gallons of sports drink Jaylen made using 9/10 of a large cooler with water and 6 cups of sports drink concentrate is 3.75 gallons

<h3>Total gallons</h3>

  • Water in the large cooler = 9/10

Space remaining = 1 - 9/10

= 10-9 / 10

= 1/10

1/10 = 6 cups

  • Total gallons of sport drink = x

6 cups / total = 1/10

6 × 10 = total × 1

60 cups = total

Cups to gallons:

16 cups = 1 gallon

Total gallons of sport drink, x = 60 cups / 16

= 3.75 gallons

Complete question:

To make a sports drink for the football team, Jaylen filled 9/10 of a large cooler with water. Then, he filled the remaining space with 6 cups of sports drink concentrate. How many gallons of sports drink did Jaylen make?

Learn more about total gallons:

brainly.com/question/26007201

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3 0
2 years ago
Geometry and perimeter help plz :(
Novay_Z [31]

Answer:

11.)4.79mi

12.)8cm

13.)10.6km

14.)5.93

15.)2yd

16.)5.41in

17)2y

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19)11.8yd

20)4.51km

Step-by-step explanation:

11.)15.8x2=31.6 31.6/6.6=4.79

12.)64/8=8

13.)26x2=54 54/4.9=10.6

14.)8.6x2=17.2 17.2/5.93

15.)2/1=2

16.)29.2/5.4=5.41

17)4/2=2

18)10/5=2

19)139.2/11.8=11.8

20)20.3/4.5=4.51

3 0
3 years ago
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