The cost for wall-to-wall carpeting is equal to $ 318.
How to compute the cost for wall-to-wall carpeting
In this problem we need to compute the cost for wall-to-wall carpeting, that is, the cost of covering the floor of the entire room. This can be done by using the following formula:
C = (1 / 9) · c · w · l
Where:
C - Cost, in monetary units. c - Unit cost, in monetary units per yard.w - Width, in feetl - Length, in feetIf we know that c = 13.25, w = 12 and l = 18, then the cost of the wall-to-wall carpeting is:
C = (1 / 9) · 13.12 · 12 · 18
C = 318
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school administrator believes that the mean class GPAs for a given course are higher than the preferred mean of 2.75 at a significance level of 0.05, and checks a randomly chosen sample of 50 classes. Create a histogram, and calculate x, the t-statistic, and the p-value.
3.09
2.73
2.58
2.68
2.84
2.68
2.64
2.62
2.35
2.72
2.63
2.77
2.72
3.03
2.71
2.96
2.74
3.01
2.88
2.68
2.83
3.02
2.83
2.71
2.67
2.79
2.65
2.56
2.78
2.89
2.40
2.38
2.41
2.83
2.86
3.01
2.80
2.84
2.95
2.75
2.93
2.48
2.34
2.97
2.85
2.74
2.84
3.10
2.62
2.77
It can be concluded that there exists ‘insufficient evidence’ depicting that the ‘new mean GPA is more than 2.75’.
Therefore, X= 2.7532; T = 0.1203; P = 0.4524.
How to solveH0: ‘The mean class GPAs for a given course’ is equal to 2.75.
H1: ‘The mean class GPAs for a given course’ exceeds 2.75.
Our 'sample size' n = 50 and we calculate the ‘sample mean and sd’ with 'Excel', through its respective code ‘AVERAGE()’.
The resultant ‘sample mean’ xbar equals to 2.7532, while implementing the code ‘STDEV.S()’ gives us the ‘sample sd’ s being 0.188164.
The ‘hypothesized mean’ μ0 is again fixed at 2.75. Given that the ‘population sd is unknown’, we are obliged to perform a ‘t-test’ in order to receive our data.
Evaluating this test statistic provides us with-
T = (xbar-μ0)/(s/√n)
= (2.7532-2.75)/(0.188164/√50)
= 0.0032/0.0266
= 0.1203
Also, taking into account the 'degrees of freedom', which is (n-1), we figure out that it sums up to 49.
After conjuring a 'students t distribution', we get a P-value of 0.4524. Hereby, as the ‘P-value surpasses the significant level of 0.05’, the ‘null hypothesis fails to be dismissed’.
Consequently, it can be concluded that there exists ‘insufficient evidence’ depicting that the ‘new mean GPA is more than 2.75’.
Therefore, X= 2.7532; T = 0.1203; P = 0.4524.
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calculate the lengths a, b, c, d, e, f, g and h
A.) The length of the missing part of the triangle would be given as follows;
a = 4
b = 3
How to calculate the length of the missing sides of the triangle?To calculate the missing part of the triangle, the sine formula should be used such as follows;
x /SinX = b/sinB
where;
x= 5
X = 90
b = ?
B = 37°
That is;
5/sin90 = b/sin37
make b the subject of formula;
b = 5× 0.601815023/1
= 3
a² = C²- b²
= 25-9
= 16
a = √16 = 4
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Solve
3 (6 +0.5 - 1.47)
For the pyramid below draw the net and then calculate its total surface area using your net. ( picture is uploaded)
The total surface area of the pyramid from the net is 286 square cm
Calculating the total surface area from the netTo calculate the total surface area of a pyramid from its net, you need to add up the areas of all its faces.
The net of a pyramid is a two-dimensional representation of the pyramid, where the edges of the net represent the edges of the pyramid.
In this case, the nets are
Rectangle of: 10 by 7Pair of triangles of: 10 by 12.5, 7 by 13Using the above as a guide, we have the following:
Area = 10 * 7 + 2 * (1/2 * 10 * 12.5 + 1/2 * 7 * 13)
Evaluate
Area = 286
Hence, the surface area is 286 square cm
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Need this asap help me
Answer:
-1
Step-by-step explanation:
You want the average rate of change of the function shown in the graph between x=-1 and x=2.
Y-valuesThe y-value at x = -1 is 9.
The y-value at x = 2 is 6.
Rate of changeThe graph changes by 6-9 = -3 units as x changes by 2 -(-1) = +3 units.
The average rate of change is ...
(change in y) / (change in x) = -3/3 = -1
The average rate of change from x = -1 to x = 3 is -1.
<95141404393>
Help with this math.
Answer:
17cm
Step-by-step explanation:
Perimeter is the sum of all the sides.
4.5+4.5=9
4+4=8
9+8=17
A company has 7000 arrivals of Internet traffic over a period of 16,780 thousandths of a minute. Let the random variable
× represent the number of such Internet traffic arrivals in one thousandth of a minute. It appears that these Internet
-M
arrivals have a Poison distribution. If we want to use the formula ply= l"•é
to find the probability of exactly 3
X!
arrivals in one thousandth of a minute, what are the values of y, ×, and e that would be used in that formula?
The values we used in the Poisson probability formula are:
μ = λ = 0.4168
x = 3
e ≈ 2.718
What is Poisson probability?The Poisson probability distribution is a statistical distribution that models the probability of a certain number of events occurring in a fixed interval of time or space, given the average rate of occurrence of the events.
The Poisson distribution has a mean and variance of λ. Therefore, in this case, the mean and variance of the number of Internet traffic arrivals in one thousandth of a minute are equal to λ.
We can find the value of μ by dividing the total number of arrivals (7000) by the total time period (16,780):
μ[tex]= 7000/16,780 = 0.4168[/tex]
We can use μ as the value of λ in the Poisson distribution since they are equal.
To find the probability of exactly 3 arrivals in one thousandth of a minute, we use the Poisson probability formula:
P(x=3) = (e^(-λ) * λ^x) / x!
where x = 3.
Substituting the values we have:
[tex]P(x=3)[/tex][tex]= (e^(-0.4168) * 0.4168^3) / 3![/tex]
Using a calculator, we can evaluate e^(-0.4168) to be 0.6596, and simplify the denominator:
[tex]P(x=3) = (0.6596 * 0.0287) / 6[/tex]
[tex]P(x=3) ≈ 0.000305[/tex]
Therefore, the values we used in the Poisson probability formula are:
μ = λ = 0.4168
x = 3
e ≈ 2.718
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The values we used in the Poisson probability formula are:
μ = λ = 0.4168
x = 3
e ≈ 2.718
What is Poisson probability?The Poisson probability distribution is a statistical distribution that models the probability of a certain number of events occurring in a fixed interval of time or space, given the average rate of occurrence of the events.
The Poisson distribution has a mean and variance of λ. Therefore, in this case, the mean and variance of the number of Internet traffic arrivals in one thousandth of a minute are equal to λ.
We can find the value of μ by dividing the total number of arrivals (7000) by the total time period (16,780):
μ[tex]= 7000/16,780 = 0.4168[/tex]
We can use μ as the value of λ in the Poisson distribution since they are equal.
To find the probability of exactly 3 arrivals in one thousandth of a minute, we use the Poisson probability formula:
P(x=3) = (e^(-λ) * λ^x) / x!
where x = 3.
Substituting the values we have:
[tex]P(x=3)[/tex][tex]= (e^(-0.4168) * 0.4168^3) / 3![/tex]
Using a calculator, we can evaluate e^(-0.4168) to be 0.6596, and simplify the denominator:
[tex]P(x=3) = (0.6596 * 0.0287) / 6[/tex]
[tex]P(x=3) ≈ 0.000305[/tex]
Therefore, the values we used in the Poisson probability formula are:
μ = λ = 0.4168
x = 3
e ≈ 2.718
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brainliest! Pls help! Determine the relationship between the two triangles and whether or not they can be proven to be congruent.
Answer:
The two triangles are related by Angle-Angle-Side (AAS), so the triangles are congruent.
URGENT!! ILL GIVE
BRAINLIEST! AND 100 POINTS
1) Percent of time that customers at the old store bought milk shakes is: 20%
2) Percent of time that customers at the new store bought milk shakes is:
26%
3) Percent of total sales that were ice cream is: 78%
4) Percent of new store sales of both shops is: 35%
How to find the percentage?We are given the following parameters:
Number of Servings of Icecream in Old store = 52100
Number of milk shakes in old store = 13400
Number of Servings of Icecream in New store = 25800
Number of milk shakes in new store = 9200
1) Percent of time that customers at the old store bought milk shakes is:
Percentage = [13400/(52100 + 13400)] * 100%
≈ 20%
2) Percent of time that customers at the new store bought milk shakes is:
Percentage = [9200/(25800 + 9200)] * 100%
≈ 26%
3) Percent of total sales that were ice cream:
Percentage = [(52100 + 25800)/(52100 + 25800 + 13400 + 9200)] * 100%
≈ 78%
4) Percent of new store sales of both shops is:
Percentage = (25800 + 9200)/(52100 + 25800 + 13400 + 9200)] * 100%
≈ 35%
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What happens to a consistent slope when the y value starts to decrease and the x value remains the same over time?
A. Y decreases and X decreases
B. Y decreases and X increases
C. Y increases and X increases
D. Y increases and X decreases
Answer:
If the y value decreases while the x value remains the same over time, then the correct answer would be A. Y decreases and X decreases.
Step-by-step explanation:
Sure! A slope is a measure of the steepness of a line. It is calculated by dividing the change in the y-coordinates (rise) by the change in the x-coordinates (run) between two points on a line. The formula for slope is m = (y2 - y1) / (x2 - x1).
In your question, if the y value decreases while the x value remains the same over time, it means that the change in y-coordinates (rise) is negative while the change in x-coordinates (run) is zero. This results in a vertical line with an undefined slope. Therefore, the correct answer would be A. Y decreases and X decreases.
in the space below draw a triangle with angles 60° and 60° and an included length of 1 inch
The triangle presented in the diagram drawn is known as equilateral triangle.
What is triangle with angle 60?A triangle with angle 60 degrees is known as equilateral triangle because the sum of angles in a triangle is 180 degrees.
So if the total angles in a triangles is 180 degrees, and two known angles are 60 degrees, then the remaining side will be 60 degrees.
In an equilateral triangle, each of the interior angle measures 60 degrees.
Thus, the triangle presented in the diagram drawn is known as equilateral triangle.
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Ten pieces of paper with the number 1 to 10 are placed in a hat. What's the probability of pulling out a number that is divisible by 2 or 3?
A.1/10
B.6/10
C.8/10
D. some other response
The probability of pulling out a number which is divisible by 2 or 3 will be 7/10 which is not given here. So, option D will be the answer.
How do we find Probability?
The measurement through which we find the likelihood of an event to occur is called probability. We cannot predict a lot of events with total certainty. And thus, the chance of a event to occur (i.e. how likely they re going to happen) can be predicted using probability.
Probability of any event to happen can be find as: No of favorable outcomes/Total number of outcomes.
Here,
The total no of outcomes = 1,2,3,4,5,6,7,8,9,10
No of favorable outcomes ={2,3,4,6,8,9,10} = 7
Therefore, P(E) = 7/10
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999.989959+9999999999.584775748845747887=
In the most recent reporting period, the amount of cash paid by Nike for property, plant and equipment was (in millions)?
a.
$171.
b.
$695.
c.
$3,800.
d.
$4,904.
In the most recent reporting period, the amount of cash paid by Nike for property, plant and equipment was $4,904 million. The Option D is correct.
What are recognized as cash payment under property, plant and equipment section?The cash payments under property, plant, and equipment (PP&E) are recognized in a company's financial statements when they represent actual expenditures for acquiring, constructing, or improving long-term assets.
Some examples of cash payments that could be recognized under PP&E include the purchase price of land or buildings, expenses related to preparing land for its intended use, costs incurred to construct new buildings or renovate existing ones, expenditures to install or upgrade equipment etc.
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This is volume and factors and i’m having a hard time with it, please help.
The highest temperature on Day 7 is equal to 60 degrees.
The day in which the highest temperature was 60 degrees is day 3.
Yes, the high temperature is a function of the day because it is dependent variable.
No, the day is not a function of the high temperature because it is an independent variable.
What is an independent variable?In Mathematics, an independent variable can be defined as the variable that is being manipulated by an experimenter, scientist, or a researcher.
This ultimately implies that, an independent variable is always considered as the cause in an experiment and it is represented by the x-axis value on a graph.
In this context, we can reasonably infer and logically deduce that time measured in days represent the independent variable while the highest temperature measured in degree Fahrenheit represent the dependent variable.
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it’s geometry and i HATE geometry
Answer: <ABC = <GHI transitive property
Step-by-step explanation:
<ABC = <GHI transitive property
this is because if you have <B=<E and <H=<E then <B=<H
thisis a tranisitive property
Tom jogs 4 1/6 miles from his house. He then jogs 5 4/5 miles farther. How many miles has Tom jogged in all? Write your answer as a mixed number in simplest form.
Tom has jogged 9 29/30 miles in all.
How to solve for the distanceJust add the values that tells us all the distamnce that he jogged
Write the values as improper fraction
(25/6) + (29/5)
To add these fractions, we need to find a common denominator, which is the least common multiple (LCM) of 6 and 5. The LCM of 6 and 5 is 30. Now we can convert each fraction to an equivalent fraction with a denominator of 30:
(25/6) * (5/5) = 125/30
(29/5) * (6/6) = 174/30
Now, add the fractions:
(125/30) + (174/30) = (125 + 174) / 30 = 299/30
Now, let's convert this improper fraction back into a mixed number:
299 ÷ 30 = 9 (remainder 29)
So, the mixed number is 9 29/30.
Tom has jogged 9 29/30 miles in all.
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HELP ME PLEASE
The average child in elementary school brings home 13 pieces of paper to show their parents each week. Students at Little Kids Elementary School are in a program that is supposed to be more focused on digital work than paperwork. In one week, five students brought home to following number of papers: 14, 12, 18, 8, 11
Conduct the steps of hypothesis testing to determine whether there is a different amount of papers brought home by the kids at Little Kids Elementary School compared to normal.
The steps of "hypothesis-testing" for papers bought home are stating the Null and Alternate Hypothesis, find level-of-significance, collecting data, determining p-value, and making decision.
The "Hypothesis-Testing" is defined as a statistical method used to make inferences about a population based on a sample of data. It involves making a assumption about a population parameter (such as its mean or proportion) and then collecting data to test whether the hypothesis is likely to be true or false.
The steps of hypothesis testing are:
Step 1: State the "Null-Hypothesis"
The null hypothesis (H₀) is = average number of papers brought home by the kids at Little Kids Elementary School is the same as the average for the general population, which is 13.
⇒ H₀: µ = 13,
Step 2: State the alternative hypothesis
The "Alternative-Hypothesis" (Hₐ) is = average number of papers brought home by the kids at Little Kids Elementary School is different from 13.
⇒ Hₐ: µ ≠ 13,
Step 3: Determine the level of significance
Let "significance-level" be "α = 0.05". This means we accept a 5% chance of making a "Type I Error"
Step 4: Collect the data and calculate test-statistic
The sample mean of the number of papers brought home by the kids at Little Kids Elementary School is:
⇒ x' = (14 + 12 + 18 + 8 + 11)/5 = 12.6,
The sample standard deviation is:
⇒ s = √[((14-12.6)² + (12-12.6)² + (18-12.6)² + (8-12.6)² + (11-12.6)²)/4] ≈ 3.71
The "test-statistic" ⇒ t = (x' - µ)/(s/√n);
where n = sample size = (5),
⇒ t = (12.6 - 13)/(3.57/√5) = -0.25,
Step 5: Determine of "p-value",
The "degrees-of-freedom" = 4, ..because 5 - 1 = 4,
We know that "p-value" for t = -0.63 with 4 "degrees-of-freedom" is approximately 0.8103.
Step 6: Making decision and interpreting results
The p-value is 0.8103 which is greater than "significance-level" of (0.05),
So we fail to reject the null hypothesis. and say that there is not enough evidence to conclude that the average number of papers brought home by the kids at Little Kids Elementary School is different from the population mean of 13.
Therefore, we can say that the digital work program did not have a statistically significant effect on the amount of papers brought home by the students at Little Kids Elementary School.
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Write an equation to represent the function: reflected over the x-axis, then translated 6 units left
The equation of the transformed function is y = -f(x + 6)
Given data ,
Let the function be represented as f ( x )
Now , the value of f ( x ) is
f ( x ) = x
On simplifying , we get
Reflecting over the x-axis: To reflect a function over the x-axis, we multiply the function by -1. This changes the sign of the y-coordinate of each point on the graph of the function. So, the function after reflection over the x-axis would be y = -f(x).
Translating 6 units left: To translate a function 6 units to the left, we replace x with (x + 6). This shifts the graph of the function horizontally to the left by 6 units. So, the function after translation 6 units left would be y = -f(x + 6)
Hence , the function is y = -f(x + 6)
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jackson well middle school find area.
multiply each shapes by length x width
Step-by-step explanation:
an example:
5x3 is 15
then do that for all of the shapes in this photo then add all of your answer together to get you're area
hope this helps
Michael has an average daily balance on his credit card of $327.50. His credit card charges 11.99% annual interest. What will his monthly finance charge be?
Answer:
First, we need to calculate Michael's daily interest rate:
0.1199 / 365 = 0.0003282
Then, we can calculate his daily finance charge:
327.50 x 0.0003282 = 0.1075
To find his monthly finance charge, we multiply his daily finance charge by the number of days in a month:
0.1075 x 30 = 3.225
So Michael's monthly finance charge will be $3.23 (rounded to the nearest cent).
Show that " if x and y are odd integers, then x+y is even" using an indirect proof ( a proof by contraposition)
Using a proof by contraposition we can see that the sum must be even.
How to use the proof by contraposition?Here we know that x and y are odd integers, then we can write thes two numbers as:
x = 2n + 1
y = 2m + 1
Where n and m are integers.
If we use the proof by contraposition, then we will assume that the outcome is also an odd number 2k + 1
Then we can write:
2n + 1 + 2m + 1 = 2k + 1
We can simplify this to get:
2n + 2m + 1= 2k
2(n + m) + 1 = 2k
So there we have an odd number is equal to an even number, that does not make sense, thus, the outcome of the sum can't be odd.
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A rectangular pyramid is shown in the figure. A rectangular pyramid with a base of dimensions 7 centimeters by 5 centimeters. The two large triangular faces have a height of 7.6 centimeters. The two small triangular faces have a height of 8 centimeters. What is the surface area of the pyramid? 64.1 cm2 93.2 cm2 128.2 cm2 256.4 cm2
The surface area of the pyramid is 128.2cm².
What is the surface area of the pyramid?
A pyramid is a three-dimensional building with triangular lateral faces and a polygonal base. A pyramid's surface area is simply the total area of all of its faces.
Here, we have
Given: A rectangular pyramid with a base of dimensions 7 centimeters by 5 centimeters. The two large triangular faces have a height of 7.6 centimeters. The two small triangular faces have a height of 8 centimeters.
We have to find the surface area of the pyramid.
The rectangular base of the pyramid has a length of 7 centimeters and a width of 5 centimeters, so the area of the rectangular base is 35 cm².
The two large triangular faces have a height of 7.6 centimeters, so the area of each of these faces can be calculated as:
= (1/2)×7×7.6
= 26.6 cm²
Similarly, the two small triangular faces have a height of 8 centimeters, so the area of each of these faces can be calculated as:
= (1/2)×5×8
= 20cm²
The total surface area of the rectangular pyramid is:
= 35cm² + 2×26.6 cm² + 2×20 cm²
= 128.2cm²
Hence, the surface area of the pyramid is 128.2cm².
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ou’re shopping for a jacket online and find one you like for €110.50 Euro, which is
equal to $125 U.S.
a. What is worth more, $1 U.S. or €1 Euro? Explain.
b. Fill in the blanks. Show how you arrive at your answers.
$1 U.S. ≈ €____________________ Euro €1 Euro ≈ $____________________ U.S.
c. You see the same jacket on another site for ₱ 2,000 Mexican Pesos. Use the fact that $1
U.S. is about ₱ 20.66 Mexican Pesos to determine whether this is cheaper than $125 U.S.
Show how you arrive at your answer.
7. The current average cost of gas in Italy is €1.726 Euro per liter. What is this cost in
U.S. Dollars per gallon? Use your answer to Problem #6b and the fact that there are
about 0.26 gallons in 1 liter.
75
1. An acrobat is on a platform that is 25 feet in the air. She jumps down
at an initial vertical velocity of 4 ft/s. Write a quadratic function to
represent the height h of the acrobat t seconds after the jump.
If a safety net is placed 5 feet above the ground, how long will it take
for her to land safely on the net?
It will take the acrobat 1/4 of a second to land safely on the net.
What is velocity?Velocity is a physical quantity that measures the rate at which an object moves in a particular direction. It is measured in terms of distance traveled per unit of time, usually expressed in terms of meters per second (m/s). Velocity is a vector quantity, meaning it has both a magnitude and a direction. It is an important concept in physics and is used to understand the motion of objects and forces.
The quadratic equation representing the height h of the acrobat t seconds after the jump can be written as follows: [tex]h=-16t^2+4t+25[/tex].
To find the time it takes for the acrobat to land safely on the net, we need to solve for t when h=5. We can do this by substituting 5 for h into the equation and solving for t:
[tex]h=-16t^2+4t+25\\\\5=-16t^2+4t+25\\\\=-16t^2+4t-20=0\\\\(4+\sqrt{64})/(-32)=t\\ \\t=(4+8)/(-32)\\\\t=1/4[/tex]
Therefore, it will take the acrobat 1/4 of a second to land safely on the net.
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5. Let U = (x/x is less than 20, x €
N] and let A = (x/3 < x < 15), B =
(x/1 < x < 15) and C (x/x is an odd
number, x € Llj Carry out the
following operations and make
the Venn diagram
(a) AnB'
(B C'UA
(the bac
[d) (A'nc')
Okay, let's break this down step-by-step:
U = {x | x < 20, x is a natural number}
A = {x | 3 < x < 15}
B = {x | 1 < x < 15}
C = {x | x is an odd number, x is a natural number}
(a) A n B' (using De Morgan's law: A n B' = A' U B')
= {x | x ≥ 15 or x ≥ 3}
= {16, 17, 18, 19}
(b) B C' U A
= B U (C' U A)
= {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14} U {1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14}
= {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}
(c) (A' n C ')
= (A' C') (by De Morgan's law)
= {x | x > 15 and x is even, x is a natural number}
= {16, 18}
The Venn diagram would be:
U A B C
_____|_____|_____|_____
| | | |
| | | |
| | ___|_____|___
| | | |
| | | 16, 17, 18, 19
| | | |
| | |_____|_____|___
| | | | |
| | | ___|_____|___
| | | | 16, 18
| | | |_____|_____|___
Does this make sense? Let me know if you have any other questions!
Consider the probability that exactly 91
out of 153
registered voters will vote in the presidential election. Assume the probability that a given registered voter will vote in the presidential election is 59%
.
Step-by-step explanation:
We can use the binomial distribution to compute the probability that exactly 91 out of 153 registered voters will vote in the presidential election, assuming that the probability that any given registered voter will vote in the presidential election is 59%.
The probability mass function of the binomial distribution is:
P(X = k) = (n choose k) * p^k * (1 - p)^(n - k)
where:
- n is the number of trials (in this case, the number of registered voters)
- k is the number of successes (in this case, the number of registered voters who will vote in the election)
- p is the probability of success on any individual trial (in this case, the probability that a given registered voter will vote in the election)
Using this formula, we can calculate:
P(exactly 91 out of 153 voters will vote) = (153 choose 91) * 0.59^91 * (1 - 0.59)^(153 - 91)
= 0.037
Therefore, the probability that exactly 91 out of 153 registered voters will vote in the presidential election is approximately 0.037, or about 3.7%.
peters annual salary was 35000 he earned a 4% raise. what is his new salary
Peter’s new salary by the given data is $36,400.
We are given that;
Salary= 35000
Percentage= 4%
Now,
To find Peter’s new salary, we need to add the amount of his raise to his old salary. The amount of his raise is 4% of his old salary, which means we need to multiply his old salary by 0.04 (or 4/100).
The amount of his raise is:
0.04 × 35000
= 1400
35000 + 1400
= 36400
Therefore, by the given percentage the answer will be $36,400.
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Peter’s new salary by the given data is $36,400.
We are given that;
Salary= 35000
Percentage= 4%
Now,
To find Peter’s new salary, we need to add the amount of his raise to his old salary. The amount of his raise is 4% of his old salary, which means we need to multiply his old salary by 0.04 (or 4/100).
The amount of his raise is:
0.04 × 35000
= 1400
35000 + 1400
= 36400
Therefore, by the given percentage the answer will be $36,400.
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A machine that cost $170,000 has an estimated residual value of $17,000 and an estimated useful life of four years. The company uses double-declining-balance depreciation.
Calculate its book value at the end of year 3. (Do not round intermediate calculations.)
Lily took a survey of 80 students on 7th grade and 150 students in 8th grade she found that 80% of the 7th graders like country music while only 60% of the 8th graders like it. Which statement is true
If Lily took a survey of 80 students of 7th grade and 150 students of 8th grade, then there are 64 "7th" grade students, and 90 "8th" grade students who like music.
First we find the the number of students who like music in "7th-grade".
Number of 7th grader students that are being surveyed = 80,
Percent of 7th graders who like country music = 80%,
So, Number of 7th graders who like country music are
⇒ 80% of 80 = 0.8 × 80 = 64
So, 64 out of the 80 students in 7th grade like country music.
For 8th graders;
Number of "8th-grader" students that are being surveyed = 150,
Percent of 8th graders who like country-music = 60%,
So, Number of 8th graders who like country music
⇒ 60% of 150 = 0.6 × 150 = 90,
Therefore, 90 out of the 150 students in 8th grade like country music.
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The given question is incomplete, the complete question is
Lily took a survey of 80 students on 7th grade and 150 students in 8th grade she found that 80% of the 7th graders like country music while only 60% of the 8th graders like it. Find the number of students from each grade who like music.