what is the cost of painting the walls and ceiling of a room with walls 30 foot by 25 foot by 1st foot with paint that covers at $9.50 per square yard, allowing for 1275 square feet for doors, windows, and baseboards?
Answers
therefore, the surface area of that room is
2 10x25 rectangles, front and back
2 30x10 rectangles, left and right
and 2 25x30 rectangles, top and bottom
so the area will be (2*10*25) + (2*30*10) + (2*25*30), which gives us 2600 square feet though, not yards.
let's add the doors, windows and others which is 1275, so 2600 + 1275, that gives us 3875 square feet.
now, the paint is 9.5 for square yard, no feet, so let's do some conversion then,
[tex]\bf \begin{array}{ll} yards&feet\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 1yd&3ft\\ (1yd)^2&(3ft)^2\\ yd^2&3^2ft^2\\ &9ft^2 \end{array}[/tex]
so, if there are 9 square feet in one square yard, how many square yards are there in 3875 square feet?
[tex]\bf \begin{array}{ccll} yd^2&ft^2\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 1&9\\ x&3875 \end{array}\implies \cfrac{1}{x}=\cfrac{9}{3875}\implies \cfrac{3875}{9}=x[/tex]
that's how many yd² are there in 3875 ft².
now, we know for every yd², is $9.50, so then the cost will be
[tex]\bf 9.5\cdot \cfrac{3875}{9}\implies \cfrac{95}{10}\cdot \cfrac{3875}{9}\implies \cfrac{73625}{18}~~\approx~~ \stackrel{\$}{4090.2778}[/tex]
Related Questions
Which quadratic function has a leading coefficient of 2 and a constant term of –3?
f(x) = 2x3 – 3
f(x) = –3x2 – 3x + 2
f(x) = –3x3 + 2
f(x) = 2x2 + 3x – 3
Answers
This leaves f(x) = 2x^3 - 3 and f(x) = 2x^2 + 3x - 3.
Please note: use "^" to indicate exponentiation; do not write "x2" or "x3."
Eliminate f(x) = 2x^3-3, because it's NOT a quadratic function.
This leaves f(x) = 2x^2 + 3x - 3 as the answer; it has a leading coeff. of 2 and a constant term of -3, as required.
The solution is Option D.
The quadratic equation which has a leading coefficient of 2 and a constant term of -3 is A = 2x² + 3x - 3
What is Quadratic Equation?
A quadratic equation is a second-order polynomial equation in a single variable x , ax² + bx + c=0. with a ≠ 0. Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution. The solution may be real or complex.
The roots of the quadratic equations are
x = [ -b ± √ ( b² - 4ac ) ] / ( 2a )
where ( b² - 4ac ) is the discriminant
when ( b² - 4ac ) is positive, we get two real solutions
when discriminant is zero we get just one real solution (both answers are the same)
when discriminant is negative we get a pair of complex solutions
Given data ,
Let the quadratic equation be represented as A
Now , the value of A is
a) Let the equation be f ( x ) = 2x³ - 3
The equation is not a quadratic equation
b) Let the equation be f ( x ) = -3x² - 3x + 2
The quadratic equation does not have a constant term of -3
c) Let the equation be f ( x ) = -3x³ + 2
The equation is not a quadratic equation
d) Let the equation be f ( x ) = 2x² + 3x -3
Now , the quadratic equation is of the form ax² + bx + c = 0 and has a leading coefficient of 2 and constant term of -3
Hence , the quadratic equation is f ( x ) = 2x² + 3x -3
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Draw or write two ways to use a doubles fact to find 6+7
Answers
5+5=10
2+2=4
3+3=6
A double is simply a pair of identical numbers added together. There's a pair of doubles you can subtract 1 from to get 6+7, and there's a pair you can add 1 to get the same answer. What are those pairs?
Hint: If you take the example 3+4, you can either subtract 1 from the double 4+4 or add 1 to the double 3+3 to obtain your answer.
Calculate the quotient and remainder of 19 divided by 7.
Answers
F=9/5(K−273.15)+32 solve the formula for K
Answers
k=255.372 + 5f/9 the 2 repeats it's self
Final answer:
To solve for K in the equation F=9/5(K−273.15)+32, subtract 32 from both sides, multiply by 5/9, and then add 273.15 to isolate and solve for K.
Explanation:
When solving the equation F=9/5(K−273.15)+32 for K, the goal is to isolate K on one side of the equation. To achieve this, follow these steps:
Subtract 32 from both sides of the equation: F − 32 = 9/5(K − 273.15).Multiply both sides by 5/9 to get: (5/9) × (F − 32) = K − 273.15.Finally, add 273.15 to both sides to solve for K: K = (5/9) × (F − 32) + 273.15.This formula allows you to convert a temperature from Fahrenheit to Kelvin.
how do you Evaluate 3f(2)
Answers
3f(2) = 12
Complete question: How do you Evaluate 3f(2) if f(x) = x²?
The given function is:
f(x) = x²
To find f(2), substitute x = 2 into the function f(x):
f(2) = 2²
f(2) = 4
3f(2) = 3 (4)
3f(2) = 12
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Fifty students were eating lunch in the school cafeteria. The ratio of boys to girls was 25:25. Mrs. White asked Kym to explain what that ratio meant. Kym said it meant that 25% of the students in the cafeteria were boys. Explain why Kym is incorrect.
Answers
Kym is wrong because the ratio means that 50% of the students in the cafeteria were boys.
What are ratios?
Ratio expresses the relationship between two or more numbers. It shows the number of times that one value is contained within other value.
What percentage are boys?Number of boys = (25 /50) x 50 = 25
Percentage of the number of boys = (25/50) x 100 = 50%
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Kym is incorrect because the ratio of boys to girls being 25:25 means there are equal numbers of boys and girls. Therefore, boys make up 50% of the students, not 25%.
Kym's explanation is incorrect because the ratio of boys to girls being 25:25 means that the number of boys is equal to the number of girls.
Specifically, this ratio can be simplified to 1:1. Since there are 50 students in total and the number of boys and girls is equal, there must be 25 boys and 25 girls.
Therefore, boys make up 25 out of the 50 students, which is actually 50%, not 25%.
The total number of students= 50.
Understand that a ratio of 25:25 means equal parts of boys and girls.
Simplify the ratio 25:25 to 1:1.
The number of boys: 50 students \/ 2 = 25 boys.
The percentage of boys,
(25 boys \/ 50 total students) * 100 = 50%.
Thus, boys constitute 50% of the student population, not 25%.
240 square feet minus 100 square feet
Answers
your answer is 140 square feet
hope this helps
Consider the function h(x) = arcsin x) considering the input of h... i) ...which is a valid unit of measure for the input quantity
Answers
Part a:
Considering the input of h
i.) A valid unit of measure for the input quantity is Seconds
ii.) The possible input values, i.e. the domain of h are -1 ≤ x ≤ 1
Part B:
i.) A valid unit of measure for the output quantity is the Radians.
ii.) The possible output values, i.e. the range of h is 0 ≤ h ≤ 2π
Part C:
i.) [tex]\arcsin\left(\sin\frac{\pi}{3}\right)=\frac{\pi}{3}[/tex]
ii.) [tex]\arcsin\left(\sin\frac{2\pi}{3}\right)=\frac{2\pi}{3}[/tex]
iii.) [tex]\arcsin\left(\sin\frac{7\pi}{6}\right)=\frac{7\pi}{6}[/tex]
iv.) [tex]\arcsin\left(\sin\frac{7\pi}{4}\right)=\frac{7\pi}{4}[/tex]
A number added to 12 and then subtracted by 18 equals 26. What is the number
Answers
hope this helps
Help me look at pics
Answers
Answer:
It's the first one
Step-by-step explanation:
Use the graph of y = tan x to find all values of x, 0 ≤ x ≤ 2π, for which the following is true.
tan x is undefined
Answers
now, recall that
[tex]\bf tan(\theta)=\cfrac{sin(\theta)}{cos(\theta)} \\\\\\ tan\left( \frac{\pi }{2} \right)=\cfrac{sin\left( \frac{\pi }{2} \right)}{cos\left( \frac{\pi }{2} \right)}\implies \stackrel{und efined}{tan\left( \frac{\pi }{2} \right)=\cfrac{1}{0}} \\\\\\ tan\left( \frac{3\pi }{2} \right)=\cfrac{sin\left( \frac{3\pi }{2} \right)}{cos\left( \frac{3\pi }{2} \right)}\implies \stackrel{und efined}{tan\left( \frac{\pi }{2} \right)=\cfrac{-1}{0}}[/tex]
There are two less nickels than dimes, and as many quarters, as nickels and dimes together. The total amount of money is $5.25. How many quarters, dimes, and nickels are there?
Answers
q=n+d =>q=(d-2)=q=2d-2
25q+5n+10d=525
replace q and n with d
25(2d-2) +5(d-2)+10d=525
50d-50+5d-10+10d=525
65d=585
d=9
n=7
q=16
What is the difference between the sample average y and the population mean?
Answers
Example of population: Everyone in the USA
Example of a sample: One person, chosen at random, from each of the 50 states
how do i figure out 3/4 of 640 fraction
Answers
answer
3/4 of 640 = 480
When a person reaches the age of 35 for how many seconds has that person lived?
Answers
60 min = 1 hour
24 hr = 1 day
365 days = 1 year
So, a 35-year old person is roughly 365(35) days old, or 12775 days.
Continuing applying conversion factors until you've calculated how many seconds that is. The next calculation is 12775 days times (24 hours) / (1 day)
A person who has reached the age of 35 has lived approximately 1,103,760,000 seconds. This is calculated by multiplying the number of seconds in a year by 35.
Explanation:To calculate how many seconds a person has lived by the age of 35, we need to calculate the number of seconds in a year and multiply that by 35. There are 60 seconds in a minute, 60 minutes in an hour, 24 hours in a day, and 365 days in a year. Therefore, there are approximately 31,536,000 seconds in a year. If we multiply that by 35, we find that a 35-year-old person has lived approximately 1,103,760,000 seconds.
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Two vectors are given by a with arrow = 3 î + 6 ĵ and b with arrow = -1 î + ĵ. (a) find a with arrow ✕ b with arrow.
Answers
Given that vectors are [tex]\vec a = (3, 6, 0)[/tex] and [tex]\vec b = (- 1, 1, 0)[/tex], the cross product of the two vectors are [tex]\vec a \times \vec b = (0, 0, 9)[/tex].
How to determine the cross product of two vectors
Vectorially speaking, cross product is a operation between two 3-dimension vectors to generate a third vector perpendicular to the two former. If we know that [tex]\vec a = (3, 6, 0)[/tex] and [tex]\vec b = (- 1, 1, 0)[/tex], then the cross product is:
[tex]\vec a \times \vec b = \left|\begin{array}{ccc}\hat{i}&\hat {j}&\hat{k}\\3&6&0\\-1&1&0\end{array}\right|[/tex]
[tex]\vec a \times \vec b = (0, 0, 3 + 6)[/tex]
[tex]\vec a \times \vec b = (0, 0, 9)[/tex]
Remark
The statement is incomplete and there is no possibility to complete it. Hence, we decided to consider the given statement as complete.
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The cross product of vectors a and b is found by creating a matrix with the vectors' components and calculating its determinant. The result in this case is -3î.
Explanation:To find the cross product of vectors a = 3 î + 6 ĵ and b = -1 î + ĵ, you have to follow the matrix method. We list the unit vectors î, ĵ at the top of our matrix, and then add the components of vectors a and b underneath.
⟮ î ĵ ⟯
⟮ 3 6 ⟯ (from vector a)
⟮ -1 1 ⟯ (from vector b)
We calculate the determinant of this matrix using the rule of Sarrus. The resulting vector will be î(y1*z2 – z1*y2) - ĵ(x1*z2 – z1*x2) which, when plugging in our values, gives 3î - 6î. Therefore, a✕b equals -3î.
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!!!!PLEASE HELP!!!!
Joe purchased a tray of 48 petunias to plant in his garden. The graph shows points representing the number of flowers left to plant at several different times while Joe is planting.
Select from the drop-down menus to complete the equation, in standard form, that represents the relationship between the number of petunias left to plant, y, and the time, x, Joe has spent planting.
Answers
Required equation is y - 36 = (24 - 36)/(2 - 1) (x - 1)
y - 36 = -12(x - 1)
y - 36 = -12x + 12
12x + y = 12 + 36
12x + y = 48
Answer:
12x + y = 48
Step-by-step explanation:
The coordinates of A, B, and C in the diagram are A(p, 4), B(6, 1), and C(9, q). Which equation correctly relates p and q?
Answers
Calculate the slope of line segment AB as m₁.
[tex]m_{1} = \frac{4-1}{p-6}= \frac{3}{p-6} [/tex]
Calculate the slope of line segment BC as m₂.
[tex]m_{2} = \frac{q-1}{9-6} = \frac{q-1}{3} [/tex]
The product of the slopes of perpendicular lines is equal to -1.
Therefore
[tex]( \frac{3}{p-6})( \frac{q-1}{3})=-1 \\\\ \frac{q-1}{p-6}=-1 \\\\ q-1 = 6-q \\\\ p+q = 7 [/tex]
The equation that relates p and q is p+q = 7
Answer: p + q = 7
Express the decimal number 100 in all radices from 2 to 9
Answers
Part 1
To convert the decimal number 100 to radix 2, we have:
[tex] \frac{100}{2} =50 \ remainder \ 0 \\ \\ \frac{50}{2} =25 \ remainder \ 0 \\ \\ \frac{25}{2} =12 \ remainder \ 1 \\ \\ \frac{12}{2} =6 \ remainder \ 0 \\ \\ \frac{6}{2} =3 \ remainder \ 0 \\ \\ \frac{3}{2} =1 \ remainder \ 1 \\ \\ \frac{1}{2} =0 \ remainder \ 1[/tex]
Starting from the bottom we collate the remainders.
Therefore, the value of decimal number 100 in radix 2 is 1100100
Part 2:
To convert the decimal number 100 to radix 3, we have:
[tex]\frac{100}{3} =33 \ remainder \ 1 \\ \\ \frac{33}{3} =11 \ remainder \ 0 \\ \\ \frac{11}{3} =3 \ remainder \ 2 \\ \\ \frac{3}{3} =1 \ remainder \ 0 \\ \\ \frac{1}{3} =0 \ remainder \ 1[/tex]
Starting from the bottom we collate the remainders.
Therefore, the value of decimal number 100 in radix 3 is 10201
Part 3:
To convert the decimal number 100 to radix 4, we have:
[tex]\frac{100}{4} =25 \ remainder \ 0 \\ \\ \frac{25}{4} =6 \ remainder \ 1 \\ \\ \frac{6}{4} =1 \ remainder \ 2 \\ \\ \frac{1}{4} =0 \ remainder \ 1[/tex]
Starting from the bottom we collate the remainders.
Therefore, the value of decimal number 100 in radix 4 is 1210
Part 4:
To convert the decimal number 100 to radix 5, we have:
[tex]\frac{100}{5} =20 \ remainder \ 0 \\ \\ \frac{20}{5} =4 \ remainder \ 0 \\ \\ \frac{4}{5} =0 \ remainder \ 4[/tex]
Starting from the bottom we collate the remainders.
Therefore, the value of decimal number 100 in radix 5 is 400
Part 5:
To convert the decimal number 100 to radix 6, we have:
[tex]\frac{100}{6} =16 \ remainder \ 4 \\ \\ \frac{16}{6} =2 \ remainder \ 4 \\ \\ \frac{2}{6} =0 \ remainder \ 2[/tex]
Starting from the bottom we collate the remainders.
Therefore, the value of decimal number 100 in radix 5 is 244
Part 6:
To convert the decimal number 100 to radix 7, we have:
[tex]\frac{100}{7} =14 \ remainder \ 2 \\ \\ \frac{14}{7} =2 \ remainder \ 0 \\ \\ \frac{2}{7} =0 \ remainder \ 2[/tex]
Starting from the bottom we collate the remainders.
Therefore, the value of decimal number 100 in radix 5 is 202
Part 7:
To convert the decimal number 100 to radix 8, we have:
[tex]\frac{100}{8} =12 \ remainder \ 4 \\ \\ \frac{12}{8} =1 \ remainder \ 4 \\ \\ \frac{1}{8} =0 \ remainder \ 1[/tex]
Starting from the bottom we collate the remainders.
Therefore, the value of decimal number 100 in radix 5 is 144
Part 8:
To convert the decimal number 100 to radix 9, we have:
[tex]\frac{100}{9} =11 \ remainder \ 1 \\ \\ \frac{11}{9} =1 \ remainder \ 2 \\ \\ \frac{1}{9} =0 \ remainder \ 1[/tex]
Starting from the bottom we collate the remainders.
Therefore, the value of decimal number 100 in radix 5 is 121
A business bought a lot of 2,500 lamps for fifty thousand dollars and wants to to sell them at 15% prfit. How much should each lamp cost?
Answers
L = [(50,000)(0.15) + 50,000]/(2500)
Calculate the right side of the equation to find your answer.
1. Helene’s credit card has an APR of 16.8%. She never pays her balance in full, so she always pays a finance charge. Her next billing cycle starts today. The billing period is 30 days. Today’s balance is $712.04. She is only going to use the credit card this month to make a $5,000 down payment on a new car
Answers
Answer:
a. 5712.04
b. 5712.04
c. 79.97
d. 878.71
e. 12.30
f. 67.67
Step-by-step explanation:
B- 17136.12 /30= 5712.04
C- 5712.0r x 0.014 =79.97
D- 712.04 x 29= 20,649.16
5723.04 x 1 = 5712.04
= 26,361.20/ 30
=878.71
E- 878.71(0.014)= 12.30
F- 79.97 -12.30 = 67.67
Helene will accrue a finance charge on her credit card due to not fully repaying her balance. With her APR, the monthly interest is 1.4%, which is then applied to her $5,712.04 balance after making the car down payment. This example illustrates how credit card interest is calculated and applied.
Explanation:Given Helene's credit card's Annual Percentage Rate (APR) of 16.8%, the total credit card balance after making the $5,000 down payment on a car will be $5,712.04. The APR is divided into 12 months to get the monthly interest rate. Therefore, the monthly interest rate is 16.8 / 12 = 1.4%. The finance charge for the next billing cycle will be 1.4% of $5,712.04.
Additionally, considering that Helene does not fully repay her balance, she is always subject to a finance charge, which is the cost of borrowing money. The interest cost is calculated by applying the interest rate to the balance left over at the end of the billing cycle.
This scenario is a real-world example of credit card finance and illustrates how credit card interest is computed and applied each billing cycle.
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Anyone know the answer?
Answers
One pound of grapes costs $1.55. Which equation correctly shows a pair of equivalent ratios that can be used to find the cost of 3.5 pounds of grapes?
A First one
B second one
C third one
D last one
Answers
first one <==
it could have also been : 1 / 1.55 = 3.5 / x...but that is not an answer choice
Answer:
A
Step-by-step explanation:
One pound of grapes costs $1.55. To find the amount x of 3.5 pounds of grapes we would have to multiply 1.55 by 3.5. This would give us the amount x we would have to pay for them.
If we examine the 4 equivalent radios shown in the pictures, we will see that the first one correctly shows this equivalency.
[tex]\frac{1.55}{1} = \frac{x}{3.5}[/tex]
The other 3 pictures show radios that would give us x = 3.5 / 1.55 (second and third) or x = 1.55 / 3.5 (fourth picture).
Therefore, the correct answer would be a)
Jason decides to invest in a new two-piece suit which will cost him $200. He estimates he will wear it five time per month for two years. Dry cleaning will cost about $15. Jason estimates he will have the suit cleaned four times per year. What is the total investment for the suit? What is the cost per wear?
Answers
His cost per wear
He will have 240 wears in 5 years
$180 in dry cleaning and $200 for cost of the suit.
$380 total investment
$1.58/per wear
The total investment for the suit is $380 and the cost per wear is $1.58.
What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.
12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.
This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
We have,
Jason decides to invest in a new two-piece suit which will cost him $200.
So, the total amount he invested
= $180 in dry cleaning + $200 for cost of the suit.
= $380
and, the cost per wear is
= 380/ 240
= $1.58
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Juanita works at a telemarketing company. She makes 12 sales calls per hour. Employees are encouraged to make more than 480 calls per week. Juanita has already made 144 calls this week. How many more hours, x, does Juanita need to work this week to reach the weekly goal of sales calls?
Answers
336 divided by 12 = 28
ANSWER: 28 Hours
Answer:
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Step-by-step explanation:
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I need help fast!! Having trouble with this!!
Answers
THE ANSWER TO THIS PROMBLEM IS A
if t = 0 then d =0
if t =1 then d =8x1 = 8
if t = 2 then d = 8x2 = 16
answer is C.
d = 8t
solve xsquared + 5x-24=0
Answers
(x + 8)(x - 3) = 0
x + 8 = 0; x = -8
x - 3 = 0; x = 3
answer
x = -8, x = 3
x 8
x -3
(x+8)(x-3) = 0
x = -8, 3
hope this helps
Use integers to represent the values in the statement.The hightest elevation in a country is Mt.Snowy with an altitude of 15178 feet.The lowest elevation in the country is Green Valley with an altitude of 237 feet below sea level
Answers
because it is below sea level, it is negative
the highest elevation can be expressed like so: 15178 feet
Answer:
Integers include positive Natural Numbers and Negative Natural numbers along with number which has no value called Zero.
Positive Integer=1,2,3,4.........Infinity
Negative Integer= -1,-2,-3,-4,...... -Infinity
Height of Mt.Snowy which is above sea level can be represented in terms of Integers = + 15,718 feet
Height of Green Valley which is above sea level can be represented in terms of Integers = + 237 feet
As, both Mountain snowy and Green valley are above sea level , so it will be represented by positve Integers.
Use the three steps to solve the problem. Joe is 10 years older than James. In 8 years, twice Joe's age will equal three times James's age. How old is each now? {James is 78 a0yrs., Joe is 88 a1yrs.}
Answers
x+10+8: Joe's age in 8 years
2(x+10+8)=3(x+8)
2x+36=3x+24
x=12
James=12 years old
Joe=22 years old
Answer:
James is 12 years old
Joe is 22 years old
Step-by-step explanation:
Joe is 10 years older than James. In 8 years, twice Joe's age will equal three times James's age.
LEt x be the age of James
x+10 be the age of Joe
In 8 years, James age becomes x+8
In 8 years, Joe's age becomes x+10+8 = x+18
Twice Joe's age is equal to 3 times of James's age
2(x+18)= 3(x+8)
2x+ 36=3x+24
Subtract 2x from both sides and subtract 24 from both sides
x=12
James is 12 years old
Joe is x+10 = 22 years old
Consider the equation below. f(x) = x5 ln x (a) what is the domain of the function?
Answers
f(x) = x⁵ ln(x)
Note that ln(x) is undefined as a real function for x ≤ 0.
Therefore the domain of the function is
0 < x <∞, or x = (0,∞).
Answer: x = (0, ∞) or 0 < x < ∞
The domain of the function f(x) = x5 ln x consists of all positive real numbers since the natural logarithm is undefined for zero and negative numbers.
Explanation:The domain of a function consists of all possible input values (x-values) where the function is defined. In the case of the function f(x) = x5 ln x, we need to consider where this function is defined.
The domain for a function that involves a natural logarithm (ln), like this one, is always x > 0. This is because the natural logarithm, or ln, is undefined for values of x <= 0. In other words, we can't take a natural logarithm of zero or a negative number.
Therefore, the domain of the function f(x) = x5 ln x is x > 0. All positive real numbers are included in the domain, while zero and negative numbers are excluded.
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