Answer:
The profit percentage in MP3 player is 9.37 %.
Step-by-step explanation:
Cost price of MP3 player is $320
Selling price of MP3 player is $350.
Here, selling price is more than cost price. It means there is profit in MP3 player.
Profit = SP - CP
Profit = 350 - 320
Profit = $30
Profit percentage is given by :
[tex]\% P =\dfrac{{SP}-{CP}}{{CP}}\times 100\\\\\% P=\dfrac{30}{{320}}\times 100\\\\\% P=9.37\%[/tex]
The profit percentage in MP3 player is 9.37 %.
Determine what type of model best fits the given situation:
A retirement account is expected to grow by 15% each year.
A. none of these
B. exponential
C. quadratic
D. linear
Answer:
I believe it is linear
Step-by-step explanation:
because if you are talking about percentage then it should be done on a linear graph so therefore i believe the answer is linear..................if i am incorrect i am very sorry but i believe i am correct.
Answer: Quadratic
Step-by-step explanation: I took the test
A silo is a composite of a cylindrical tower with a cone for a roof. Find the volume of the silo if the
radius of the base is 120 feet, the height of the roof is 25 feet, and the height of the entire silo is 130
feet.
Answer:
5127079.21 cubic feet
Step-by-step explanation:
The silo is in the shape of a cylinder and a cone.
The volume of the silo will be the sum of the volumes of the cylinder and the cone.
Therefore, its volume is:
[tex]V = \pi r^2h + \frac{1}{3} \pi rH[/tex]
where r = radius of cylinder and cone
h = height of cylinder
H = height of cone
The radius of the base is 120 feet, the height of the roof (cone) is 25 feet. The height of the entire silo is 130 feet. This means that the height of the cylinder is:
130 - 25 = 105 feet
Therefore, the volume of the silo is:
[tex]V = (\pi * 120^2 * 105) + (\frac{1}{3} * 120^2 * 25)\\\\V = 4750088.09 + 376991.12\\\\V = 5127079.21 ft^3[/tex]
The volume of the silo is 5127079.21 cubic feet.
Can someone please help me with this
Answer:
12 inches
Step-by-step explanation:
a^2 + b^2 = c^2
a=16
b=?
c=20
16^2 + b^2 = 20^2
256 + b^2 = 400
400 - 256 = b^2
144 = b^2
Square root 144 = b
12 = b
The equations x minus 3 y = negative 3, 2 x + y = 2, x + 3 y = 3, and 2 x minus y = negative 2 are shown on the graph below. On a coordinate plane, there are 4 lines. Green line goes through (0, 2) and (negative 1, 0). Blue line goes through (0, 2) and (1, 0). Pink line goes through (negative 1.5, 1.5), and (1.5, 0.5). Orange line goes through (negative 1.5, 0.5) and (1.5, 1.5). Which system of equations has a solution of approximately (–0.4, 1.1)? x + 3 y = 3 and 2 x minus y = negative 2 x minus 3 y = negative 3 and 2 x + y = 2 x minus 3 y = negative 3 and 2 x minus y = negative 2 x + 3 y = 3 and 2 x + y =2
Answer:
(A)x+3y=3 and 2x-y=-2
Step-by-step explanation:
In the attached graph
Green line is the graph of 2x-y=-2Red line is the graph of x-3y=-3Orange line is the graph of x+3y=3Blue Line is the graph of 2x+y=2The point of the intersection of the orange and green line has an approximate solution of (-0.4,1.1).
Therefore, the system of equation which has the approximate solution is: x+3y=3 and 2x-y=-2
The correct option is A
Answer:
A
Step-by-step explanation:
If a sphere’s surface area is doubled, what is the corresponding change in radius?
Answer:
The radius has an increase of 41.4%
Step-by-step explanation:
We have that the surface area formula is equal to:
a = 4 * pi * r ^ 2
in this case if you assume an area of 100 and we calculate the radius it would be:
100 = 4 * pi * r ^ 2
we solve for r:
r ^ 2 = 100/4 * pi
r ^ 2 = 100 / (4 * 3.14)
r ^ 2 = 7.9617
r = 2,822
now if we double the area, that is 200:
r ^ 2 = 200 / (4 * 3.14)
r ^ 2 = 15.9236
r = 3,990
So the change of the radius would be:
3.99 / 2,822 = 1,414
That is to say that the radius has an increase of 41.4%
please help me!!!
find the arc length of partial circle.
Either enter an exact answer in terms of n pi or use 3.14 for n pi and enter as a decimal.
* This is from Khan academy and the lesson is (Circumstance of part of circles)*
Answer: 1.57
Step-by-step explanation:
When solving for the arc you have to find the circumference.
For circumference you'll need the diameter which is 2x the radius.
So, your equation would be
1/4{(pi)(2)} = x
or
1/4{(3.14)(2)} = x
To Solve:
3.14 times 2 equals 6.28
Divide by 4 or multiply by 1/4 to get 1.57
Not sure if this is correct, I haven't learned the topic myself, but this week's to be there most reasonable way to look at it. For me anyway.
The arc length of a partial circle can be calculated using the formula Arc length = (θ/360) * 2πr, where 'θ' is the angle of the sector in degrees and 'r' is the radius of the circle. This is applicable in high school Mathematics.
Explanation:The subject of your question is the arc length of a partial circle, a concept in Mathematics. The arc length of a partial circle can be calculated using the formula: Arc length = (θ/360) * 2πr, where 'θ' is the angle of the sector in degrees and 'r' is the radius of the circle.
For instance, if a circle has a radius of 8 units and the angle of the sector is 60 degrees, the arc length can be calculated as follows: Arc length = (60/360) * 2 * 3.14 * 8 = 8.38 units (in terms of 3.14 for n π). Using n π, the exact answer would be expressed as: Arc Length = 4π/3 units.
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What is the range of the data below? A box-and-whisker plot. The number line goes from 50 to 100. The whiskers range from 52 to 93, and the box ranges from 60 to 89. A line divides the box at 82. 22 28 41 42want you inside now! LAURIE I walked down to the beach.
Answer:
42
Step-by-step explanation:
the is range is 42
Answer:
42
Step-by-step explanation:
Jane earns money walking dogs on the weekends. Jane charges $5 dollar sign, 5 for each dog she walks.
Complete the table for the given ratio.
Dogs Charge in dollars.
1 5
3 ?
5 ?
FIND THE ?
HURRY UP I HAVE 1 MINUTE TO SOLVE THIS
Answer:
3 dogs, $15
5 dogs, $25
Step-by-step explanation:
Jane charges $5 per dog.
When she walks 3 dogs ;
1 dog = $5
3 dogs = x
x × 1 dog = $5 × 3 dogs
x= $5 × 3 dogs/ 1 dog
x= $5 × 3 = $15
When Jane Walks 5 dogs she receives,
y= $5 × 5
y= #25.
For 3 dogs, Jane would charge $15. For 5 dogs, she would charge $25. You find these amounts by multiplying the number of dogs by the charge per dog, which is $5.
Explanation:Since Jane charges $5 for each dog she walks, you can find the charge for any number of dogs by multiplying the number of dogs by 5.
For 3 dogs, she would charge $15 (3 dogs x $5 per dog = $15).
For 5 dogs, she would charge $25 (5 dogs x $5 per dog = $25).
So, the completed table would look like this:
Dogs | Charge in dollars
1 |$5
3 |$15
5 |$25
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A shipment to a warehouse consists of 2250 MP3 players. The manager chooses a random samle of 50 MP3 players and finds 6 that are defective. How many MP3 players in the shipment are likely to be defective?
Answer:
350
Step-by-step explanation:
Gimmie brainliest plzzz <3
A pizza with radius 7 in. is cut into 12 equal-sized pieces. What is the area of each piece? Round to the nearest hundredth of an inch.
Each pizza slice has an area of approximately 12.82 square inches, rounded to the nearest hundredth.
To find the area of each pizza slice, we first need to find the total area of the pizza and then divide it by the number of slices.
The formula for the area of a circle is [tex]\( A = \pi r^2 \)[/tex], where [tex]\( \pi \)[/tex] is approximately 3.14 and r is the radius of the circle.
Given that the radius of the pizza is 7 inches, we can calculate the total area of the pizza:
[tex]\[ A_{\text{total}} = \pi \times (7)^2 \]\[ A_{\text{total}} = 3.14 \times 49 \]\[ A_{\text{total}} \approx 153.86 \text{ square inches} \][/tex]
Now, to find the area of each pizza slice, we divide the total area by the number of slices (12):
[tex]\[ A_{\text{each slice}} = \frac{A_{\text{total}}}{12} \]\[ A_{\text{each slice}} \approx \frac{153.86}{12} \]\[ A_{\text{each slice}} \approx 12.82 \][/tex]
So, the area of each pizza slice is approximately 12.82 square inches.
Geometry Question Help please
Answer:
<EAD = 31*
Step-by-step explanation:
Because, <CAB is similar in angle measurement
Factor completely.
5
x
2
−
20
x
+
20
=
5x
2
−20x+20=5, x, squared, minus, 20, x, plus, 20, equals
Show Calculator
Answer:
[tex]5(x-2)^2[/tex]
Step-by-step explanation:
[tex]5x^2-20x+20=\\5(x^2-4x+4)=\\5(x-2)^2[/tex]
what is the slope of y= 2/3x + 4
Answer:
2/3
Step-by-step explanation:
m is the variable for slope
the equation of a line
is y=mx+b
the slope is next to the x
Answer:
[tex]slope = \frac{2}{3} [/tex]
Step-by-step explanation:
[tex]Think \: of \: y = mx + b \\ \\ m\: is \: the \: slope \\ b \: is \: the \: y \: intercept \\ \\ So, \: since \: \frac{2}{3} \: is \: on \: the \: m \: the \: slope \: is \\ \frac{2}{3}[/tex]
What did you include in your response? Check all that apply.
The boycott ended segregation on Montgomery buses.
The boycott led to violence against African Americans in Montgomery.
The boycott showed African Americans that they had some support in the white community.
The boycott provided a sense of personal power to African Americans.
The boycott gave national attention to the civil rights movement.
Answer:
the 1st and 3 and 2end one its the right one
Step-by-step explanation:
Answer:
its the first three answers :)
Step-by-step explanation:
Plsss help me !!! 10 points giving for answer
Answer:
D
Step-by-step explanation:
each one can be multiplied by 4 to get the cost
Which expression is equivalent to (x Superscript 27 Baseline y) Superscript one-third?
x cubed (RootIndex 3 StartRoot y EndRoot)
x Superscript 9 Baseline (RootIndex 3 StartRoot y EndRoot)
x Superscript 27 Baseline (RootIndex 3 StartRoot y EndRoot)
x Superscript 24 Baseline (RootIndex 3 StartRoot y EndRoot)
Answer:
x Superscript 9 Baseline (RootIndex 3 StartRoot y EndRoot)
OR x^9/(∛y)
Step-by-step explanation:
Given the indicinal equation
(x^27/y)^1/3
To find the corresponding expression, we will simplify the equation as shown:
(x^27/y)^⅓
= (x^27)^⅓/y⅓
= {x^(3×9)}^⅓/y⅓
= x^9/y⅓
= x^9/(∛y)
The right answer is x Superscript 9 Baseline (RootIndex 3 StartRoot y EndRoot)
Help!!
Find the area of the figure and type your result in the box.
4cm
4cm
Use pi*= 3.14
Answer:
22.28
Step-by-step explanation:
What are the three ways a translation could be written?
Identify the conic that is formed by the intersection of the plane described and the double-napped cone.
The plane intersects one nappe and is parallel to n.
What is the conic section formed?
A. ellipse
B. hyperbola
C. parabola
Answer:
C. Parabola
Step-by-step explanation:
A line parallel will cut only one cone (upper or lower cone, not both) making it a parabola
HELP!! ASAP!!! PLEASE!!!!!!
Answer:
It's 38
Step-by-step explanation:
I I don't know oh my God your thing is showing
Answer:
w = 8.
Step-by-step explanation:
Can't explain again did it in my head. :/
the formula for exponential decay is y=a(1-r)^t, where a is the initial amount, r is the rate of decay and t is the number of intervals. use the formula to determine the answer to the following problem.
on wednesday your science teacher gives you a list of twenty five terms to be memorized. you memorize all of them wednesday night and do not look at the list again. if you forget 5% of the list each day, how many terms will you remember seven days later for the chapter test?
How many 2/3 cup servings are in an 8-cup container of juice?
Help please
You can get 12 servings of 2/3 cup each from an 8-cup container of juice. You find this by dividing the total volume (8 cups) by the volume of each serving (2/3 cup).
Explanation:To find out how many 2/3 cup servings you can get from an 8-cup container of juice, you simply divide the total volume by the volume of each serving.
In this case, you divide 8 (the total volume) by 2/3 (the volume of each serving). Here are the step-by-step calculations:
Write 8 as a fraction, which becomes 8/1.Divide by 2/3, which in practice means multiplying 8/1 by the reciprocal of 2/3, which is 3/2.When you multiply 8/1 by 3/2, you get 24/2, which simplifies to 12.So, you can get 12 servings of 2/3 cup each from an 8-cup container of juice.
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Select Not independent or Independent for each situation. (3)
A spinner is divided into three equally sized sections. The spinner is spun three times.
A number cube is rolled twice.
A bag contains 8 white balls and 3 yellow balls. Two balls are selected from the bag without replacement.
Answer:
A spinner is divided into three equally sized sections. The spinner is spun three times.
independent, since the outcome is not affected by previous spins.
A number cube is rolled twice.
independent, since the outcome is not affected by previous rollings.A bag contains 8 white balls and 3 yellow balls. Two balls are selected from the bag without replacement.
not independent, since the new outcome depends on the balls that were drawn before.Step-by-step explanation:
The outcome of an independent variable is not affected by previous outcomes or actions, while the outcome of dependent variables is affected by previous outcomes or actions.
The outcome from independent variable is not affected by old outcomes or actions, while the outcome of dependent variables is affected by old outcomes or actions.
What is Independent Variable?An independent variable is exactly when it sounds like. It is a variable that stands alone, changed by the other variables you are trying to measure.
A spinner is divided into three sections. The spinner is spun three times.
a. independent, since the outcome is not affected by previous spins. A number cube is rolled twice.
b. independent, since the outcome is not affected by previous rolling.
c. not independent, since the new outcome depends on the balls that were drawn before.
Thus, the outcome will be an independent variable which is not affected by previous outcomes.
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Delisa is designing a website that will be viewable on both computers and mobile devices, so the website as it is seen on a mobile device is proportional to the website as it is seen on a computer. The diagonal of Delisa's computer monitor is 21 inches, and the diagonal of Delisa's tablet is 9.1 inches. If an image is 19 centimeters wide on the website when it's displayed on Delisa's computer, how wide should the image be on the tablet? Round to the nearest tenth of a millimeter, if necessary.
Final answer:
To find the width of the image on the tablet, set up a proportion using the diagonals of the computer monitor and the tablet. Solve for the unknown width using cross multiplication.So,on tablet it would be 0.84mm.
Explanation:
To determine the width of the image on the tablet, we can use a proportion based on the diagonals of the computer monitor and the tablet. The proportion can be set up as follows:
Computer Diagonal / Tablet Diagonal = Computer Width / Tablet Width
Substituting the given values, we have:
21 inches / 9.1 inches = 19 centimeters / x
Cross multiplying and solving for x, we get:
x = (9.1 inches * 19 centimeters) / 21 inches
Converting the units, the width of the image on the tablet should be approximately 8.43 centimeters=0.84mm
Find m<1.
A.30
B.35
C.40
D.55
Answer:
m <1 = 30
Step-by-step explanation:
The sum of the angles of a triangle add to 180
Let x be the unknown angle
75+75+x = 180
Combine like terms
150+x =180
Subtract 150 from each side
150-150+x = 180-150
x = 30
A cyclist rides her bike at a rate of 9 kilometers per hour. What is the rate in kilometers per minute? How many kilometers will the cyclist travel in 2 minutes
Answer: 0.15km/min and 0.3km in 2 mins
Step-by-step explanation:
Given Data:
Cyclists speed = 9km/hr
1. Some traveling 60 km/h is traveling one km/min
60/60= 1 km/min
Rate in km/min
= 9km/hr / 60min
= 3/20 km/min
= 0.15 km/min
Kilometers travelled in 2mins
= 2 / 60
= 1 / 30
= 9km/hr * 1 / 30
= 9 / 30
= 0.3 km in 2mins
Answer:
Rate(in km/min) = 0.15 km/min
Distance traveled in 2 mins = 0.3 km
Step-by-step explanation:
Rate = 9 km/hr
1 hr = 60 mins
In 60 minutes, the cyclist rides 9 km
in 1 minute, the cyclist will ride 9/60 km
Therefore, the rate in km/min = 9/60 km/min
Rate(in km/min) = 0.15 km/min
Since the cyclist rides 0.15 km in 1 min,
In 2 mins, the cyclist will ride 0.15 * 2 km = 0.3 km
Distance traveled in 2 mins = 0.3 km
Easy Question, Easy points
Topic: Volume
Answer:
about 141.37
Step-by-step explanation:
pi x 20 (h) x 1.5 (r)
radius is half of diameter :)
Answer:
141.37
Step-by-step explanation:
Would you mind giving me brainliest?
Which is equivalent to (3/125)*?
Answer:
The answer is A as when simplified the number is 125^x/3
and the only one taht represents this is a
Finn started a savings account with $5,000 and earns 3% simple interest for 5 years. How much interest will be earned over the 5 years? a) 15,000 b)759 c)3000 d)5015
Answer:
the answer is b. (since you accidentally typed 759 not 750)
Step-by-step explanation:
The formula for simple interest is
A = P (1 + rt)
A = final amount
P = initial principal balance
r = annual interest rate
t = time (in years)
and the interest is going to be 750 after you plug it in, they are not asking for the amount of money total, but the amount of interest earned.
3 percent simple interest for 5 years means you are getting 0.03 percent of money from the 5,000 initial value and for 5 years. The total interest is $750.
I hope this helped! :)
An equilateral triangle has a perimeter of 15x3 + 33x5 feet. What is the length of each side?
Answer:
70
Step-by-step explanation:
So I assumed that the x was multiplication...so...15x3=45 and 33x5=165...so the perimeter is 210, so you divide that by 3 and the answer is 70!