A store selling art supplies finds that they can sell x sketch pads each week at a price of p dollars each, according to the formula x = 1000 − 400 p. What price should they charge (in interval notation and rounded to the nearest cent) if they want to sell

a . At least 625 pads each week? b . More than 300 pads each week?

c . Less than 200 pads each week? d . At most 475 pads each week?

Answers

Answer 1

Answer:

c and b and a

Step-by-step explanation:

Answer 2

The store should charge a price between ($0, $0.94] to sell at least 625 pads each week. The store should charge a price between ($0, $1.75) to sell more than 300 pads each week. The store should charge a price between ($2.00, $2.50) to sell less than 200 pads each week. The store should charge a price between [$1.31, $2.50) to sell at most 475 pads each week.

a)

In order to solve part a of the problem, we need to set our equation as an inequality. Part a asks us to find the price the store should charge to sell at least 625 pads each week. The word at least gives us a clue on what symbol to use. In this case we should use the [tex]\leq[/tex] symbol, like this:

[tex]625\leq 1000-400p[/tex]

and now we can solve the inequality, we can start by switching places between the 625 and the 400p so we get:

[tex]400p\leq 1000-625[/tex]

[tex]400p\leq 375[/tex]

and we divide both sides into 400, so we get:

[tex]p\leq \frac{375}{400}[/tex]

[tex]p\leq $0.94[/tex]

So this can be rewritten in interval notation like this:

($0, $0.94] The price they should charge can be located between those two values.

b)

In order to solve part b of the problem, we need to set our equation as an inequality. Part b asks us to find the price the store should charge to sell at more than 300 pads each week. The word more than gives us a clue on what symbol to use. In this case we should use the < symbol, like this:

[tex]300< 1000-400p[/tex]

and now we can solve the equation, we can start by switching places between the 300 and the 400p so we get:

[tex]400p< 1000-300[/tex]

[tex]400p< 700[/tex]

and we divide both sides into 400, so we get:

[tex]p< \frac{700}{400}[/tex]

[tex]p< $1.75[/tex]

So this can be rewritten in interval notation like this:

($0, $1.75) The price they should charge can be located between those two values.

c)

In order to solve part c of the problem, we need to set our equation as an inequality. Part c asks us to find the price the store should charge to sell less than 200 pads each week. The word less than gives us a clue on what symbol to use. In this case we should use the > symbol, like this:

[tex]200> 1000-400p[/tex]

and now we can solve the inequality, we can start by switching places between the 200 and the 400p so we get:

[tex]400p> 1000-200[/tex]

[tex]400p> 800[/tex]

and we divide both sides into 400, so we get:

[tex]p> \frac{800}{400}[/tex]

[tex]p> $2.00[/tex]

at this point we need to know what the maximum price the store can charge is. We can do so by setting the equation equal to zero and solve for p, so we get:

0<1000-400p

so we can now move the 400p to the other side of the equation, so we get:

400p<1000

and divide both sides into 400 so we get:

[tex]p<\frac{1000}{400}[/tex]

which simplifies to:

p<$2.50

if the store charges more than $2.50 they will not sell any item at all.

So this can be rewritten in interval notation like this:

($2.00, $2.50) The price they should charge can be located between those two values to sell less than 200 pads each week.

d)

In order to solve part d of the problem, we need to set our equation as an inequality. Part d asks us to find the price the store should charge to sell at most 475 pads each week. The word at most gives us a clue on what symbol to use. In this case we should use the [tex]\geq[/tex] symbol, like this:

[tex]475\geq 1000-400p[/tex]

and now we can solve the inequality, we can start by switching places between the 475 and the 400p so we get:

[tex]400p\geq 1000-475[/tex]

[tex]400p\geq 525[/tex]

and we divide both sides into 400, so we get:

[tex]p\geq \frac{525}{400}[/tex]

[tex]p\geq $1.31[/tex]

So this can be rewritten in interval notation like this:

[$1.31, $2.50) The price they should charge can be located between those two values to sell 475 pads at most each week.

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Related Questions

You decide to invest $250 in an account that yields a retum of approximately 4% each year. Which function represents this situation? Of(x) = 1.04 - 250 Of(x) = 4.250 O f(x) = 250.4" Of(x) = 250 - 1.04​

Answers

Answer:

The options are not clear, select which matches the answer below

Step-by-step explanation:

Investment = $250Interest rate = 4%Time = x years

The function is:

f(x) = 250 + 250*0.04x = 250(1 + 0.04x)

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Answers

Answer:

$58.35 ÷ 3 = x

Step-by-step explanation:

$58.35 represents the price in total for all of the dresses Ann bought, 3 represents the number of dresses she bought, and x represents the price for each of the dresses.

I hope this helps you :D

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Answers

Answer:

The symbol ⊥ means is perpendicular to

Step-by-step explanation:

(brainliest)

Answer:

perpendicular to

Step-by-step explanation:

I need help with this please help if you can! I'm giving 40 points.

Find the length of the side CD in the pentagon ABCDE.

Answers

Answer
B

Explanation
Do you need me to show work?

Answer:

A.

Step-by-step explanation:

I chose letter c and d on two of my quizzes and those were wrong and I see that you chose B and got that wrong. So it leaves letter A. Hopefully its correct but its the only one left.


A bank promises to pay 5.5% pa compound interest on
deposits of £2337 if saved for 3 years. How much will the
savings be worth at the end of the period mentioned? Write
your answer correct to 2 decimal places.
Answer:​

Answers

Answer:

£407.20

Step-by-step explanation:

Deposit = £2337Interest = 5.5% pa compound Time = 3 years

Savings:

2337*((1 + 5.5/100)^3 - 1) = 2337*((1.055)^3 - 1) =407.20

look at screenshot and answer question

Answers

Answer:

32x +20

Step-by-step explanation:

Answer:

32x+20

Step-by-step explanation:

If you use distributive property you would multiply each number by 4. 4 times 8x is 32x and 4 times 5 is 20, and when you put those together you get 32x+20!

I hope this helps, and have a great day!

At the end of the football season, the Raccoons won 4 more than 2 times as many
games as the Muskrats won. Which of these could be used to determine R, the number
of games the Raccoons won in terms of m , the number of games the Muskrats won?
OR = 2(m - 4)
O R = 4m + 2
OR= 2m - 4
OR = 2m + 4

Answers

Answer:

D is the

Step-by-step explanation:

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Answer multiplying or dividing by a power of 10 will move the decimal point equal to the number of 0s

Step-by-step explanation:

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Step-by-step explanation:

[tex] \sin(c) = \frac{36}{45} = 0.8 \\ \cos(c) = \frac{27}{45} = 0.6\\ \tan(c) = \frac{36}{27} = 1.333[/tex]

what is the likelihood of choosing a blue marble from a bag containing 8 red, 6 yellow, 12 green, and 6 blue marbles​

Answers

Answer:

6/32 or 3/16 chance

Step-by-step explanation:

Adding all of the marbles up we get our total, 32.

We have 6 blue marbles so 6/32 or 3/16 chance of picking a blue marble.

Answer:

6/32 or u can simplify it to 3/16

Plzzzzz give me Brainliest!!!!!  

Which equation represents a line with a slope of -6/5
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Answers

Answer:

y = -6/5x + 1

Step-by-step explanation:

The equation that represents a line with a slope of -6/5 and a y-intercept of 1 is y = -6/5x + 1

How to determine the equation?

The given parameters are:

Slope, m = -6/5y-intercept = 1

Let the variable of the equation be x.

A linear equation is represented as:

y = Slope * x + y-intercept

So, we have:

y = -6/5 * x + 1

Evaluate

y = -6/5x + 1

Hence, the equation is y = -6/5x + 1

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write the slope of a line that is parallel to y=2x-13

Answers

Answer:

Lines with the same slope are parallel.

mparallel=2

Step-by-step explanation:

y=2x-10

only the slopes need to be the same

Find d, the depth of the water.
- 721
40 ft
115ft
a. 27 ft
b. 8.3 ft
c. 192 ft
d. 33 ft

Answers

Answer:

a

Step-by-step explanation:

Consider the triangles to be similar, that is the the one on the left and the outer one. Then the ratios of corresponding sides are equal, that is

[tex]\frac{40}{72}[/tex] = [tex]\frac{15}{d}[/tex] ( cross- multiply )

40d = 1080 ( divide both sides by 40 )

d = 27 ft → a

there are 8 circles and 6 squares. what is the simplest ratio of squares to circles.​

Answers

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4:3

Step-by-step explanation:

8:6 then divide both by 2

Find output, y when the input, x, is -3 Y=

Answers

Answer:

2

Step-by-step explanation:

Answer:

y = 2

Step-by-step explanation:

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Then when x = - 3, y = 2

Felix surrounds a 12 in. by 8 in. photo with a frame that is x inches wide. Which quadratic function represents the combined area A of the picture and the frame?

A. A(x) = x^2 + 20x + 96

B. A(x) = x^2 + 40x + 96

C. A(x) = 4x^2 + 20x + 96

D. A(x) = 4x^2 + 40x + 96

Answers

Answer:

D: A(x) = 4x² + 40x + 96

Step-by-step explanation:

Dimensions of photo is;

Length; L = 12 inches

Width; W = 8 inches

Now, this picture is surrounded by a frame that is "x" inches wide. Thus, new dimensions are;

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W_new = 8 + x + x = 2x + 8

New area is;

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A_new = 4x² + 24x + 16x + 96

A_new = 4x² + 40x + 96

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a

Step-by-step explanation:

Angles that ALWAYS sum to 180°

Answers

Answer:

supplementary angles

Step-by-step explanation:

How do you know that ADB and BDC are supplementary?

Answers

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Find the missing side length.

Answers

Answer:

d

Step-by-step explanation:

Step-by-step explanation:

i believe D I can be wrong

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Answers

Answer:

i would love to help but I can't see the whole problem. but going on a Hunch I would say you need to just multiply 45 by however much she's selling

What is 2 times 4 plus 20 and times 3?

Answers

Answer:

84

Step-by-step explanation:

what number is halfway between 8.270 and 8.280? The answer is 8.275 hope this helps

Answers

Answer:

8.275

Step-by-step explanation:

8.280 - 8.270 = 0.010

0.010/2 = 0.005

8.270 + 0.005 = 8.275

The number halfway between 8.270 and 8.280 is 8.275.

What is Arithmetic?

The study and use of numbers, their connections, and mathematical observations are topics covered by the area of mathematics known as arithmetic. The fundamental ideas in number theory, measurement, and calculation are frequently referred to as "arithmetic" (which is derived from the Greek word "arithmos," "number") (that is, the processes of addition, subtraction, multiplication, division, raising to powers, and extraction of roots).

As per the given data:

We have to find the number which is halfway between 8.270 and 8.280.

For finding the number, we can calculate the difference between 8.270 and 8.280 and then divide it by two now we can add the obtained number into 8.270 to get the number.

[tex]\frac{8.280 - 8.270}{2}[/tex]

= [tex]\frac{0.010}{2}[/tex]

= [tex]0.005[/tex]

The number halfway between 8.270 and 8.280:

8.270 + 0.005

= 8.275

Hence, the number halfway between 8.270 and 8.280 is 8.275.

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20 points
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Answers

Answer:

Probability of getting a "3" is 1/6

Probability of not getting a "3" is (1-1/6)=5/6

B) 5/6 is the right answer.

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Answers

Answer:

No solutions.

Step-by-step explanation:

22 does not equal 81, so therefore no solutions.

5x - 12 = 13, solve using algebra.

Answers

Step-by-step explanation:

5x-12=13

5x -12 =13

+12=+12

5x= 25

5 =. 5

x=5

5x - 12 = 13

5x = 13 + 12

5x = 25

25 divided by 5 is 5

Answer: x = 5

Explain how to describe the data on a histogram. Write 3-5 sentences.

Answers

PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.

what is the simplified form of y^2 -y -12/ y^2 +8y+15​

Answers

Answer:

(y - 4)/(y + 5)

Step-by-step explanation:

Simplify by factoring both trinomials:

(y^2 - y - 12)/ (y^2 +8y + 15)​ = (y - 4)(y + 3) /(y + 5)(y + 3) =(y - 4)/(y + 5)

rewrite using addition. 3(-17) explain

Answers

Answer:

-17 + -17 + -17

Step-by-step explanation:

Add -17 three times

Answer:

+ (-17) + (-17) + (-17)

-17 - 17 -17

-51

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