The restaurant sold 41 ham dinners.
Step-by-step explanation:Let's call the number of ham dinners sold as "x".
We know that the total revenue from ham dinners is $12 * x and the total revenue from turkey dinners is $15 * 35.
So, the total revenue from both dinners is $12 * x + $15 * 35 = $1017.
We can now set up an equation:
$12 * x + $15 * 35 = $1017
Expanding the equation:
$12x + $525 = $1017
Subtracting $525 from both sides:
$12x = $1017 - $525 = $492
Dividing both sides by 12:
x = $492 / $12 = 41
So, the restaurant sold 41 ham dinners.
Given the relation, find its inverse and determine whether or not the function and its inverse are functions.
((-5,0), (-1, -2). (-2, 1), (0,4), (1, 2), (2, -1)}
A. The relation is a function, but the inverse is not.
B. The relation is not a function, but the inverse is.
C. Both the relation and inverse are functions.
D. Neither the relation nor the inverse are functions.
Answer:
C; both the relation and inverse are functions
Step-by-step explanation:
A function has no more than one output for a specific input, therefore, the original set of points is a function.
To find the inverse, you swap the x and y, so you would get:
(0, -5), (-2, -1), (1, -2), (4, 0), (2, 1), (-1, 2)
The inverse is also a function, because each input has only one output.
Model a desert community where 19% of the area is desert and the rest is houses.
squares represent the area of the community that is desert.
The area of the community that is houses is represented by
squares
19 squares represent the area of the community that is desert
The area of the community that is houses is represented by 81 squares
What is a percentage?Percentage is defined as the number that represents a ratio of a total that is divided by 100 equal parts. It is represented by the symbol %.
To solve this exercise, the percentage formula and the procedure to be applied is as follows:
As we can see in the picture the the desert has 10 square each side so the area will be:
A = 10*10
A = 100 squares
As the 19% of the area is only desert we have:
Desert = A*19%
Desert = 100*0.19
Desert = 19 squares
Now, the rest of area is the community that has houses, it is represented by:
A(houses) = A - desert
A(houses) = 100 squares - 19 squares
A(houses) = 81 squares
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ABCD is a trapezoid with shorter base DC = 3 cm and altitude PQ going through the point of intersection of the diagonals O, such that PO = 1 cm and 0Q = 3 cm. Find AB, the ratio CO: AO, and the ratio between the areas of ADOC and ABOA.
The ratio of Areas is 1:1.
What is Trapezium?A quadrilateral with one set of parallel opposite sides is a trapezium. The bases and legs of a trapezium are referred to as parallel and non-parallel, respectively. It also goes by the name trapezoid.
As, The diagonals of a trapezium divide each other proportionally.
AO / OC = OB/ OD
Also, OA= OB and OC= OD
So, OA/ OC = 1: 1
In Triangle DOC and BOA
<AOB = <COD (Vertical Opposite angle)
<BAO = <OCD ( Alternate Interior angle)
By AA similarity Criteria Triangle DOC and BOA are similar.
So, ar (Δ DOC)/ ar (ΔBOA)
= DO / OB = OC / OA = DC / BA
As, the ratio of corresponding length is equal.
So, the ratio of Triangle is 1:1
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Bob wants to catch an elevator before the door closes. He is 42ft away when the door starts to close. The door has to travel 4.1ft to fully close, and is closing at a rate of 1.1ft/s. Bob needs to get to the door while it is at least 0.7ft open. How fast does he have to run in order to catch the elevator? Give your answer in feet per second, and round to the nearest hundredth.
If Bob wants to catch an elevator before the door closes. He is 42ft away when the door starts to close. How fast does he have to run in order to catch the elevator is: 12.50 ft/s.
How to find the speed?Let's v represent Bob's speed in ft/s.
First, let's find the time it takes for the door to close from 4.1 ft to 0.7 ft:
t = (4.1 - 0.7) / 1.1 = 3.4 / 1.1
t = 3.09 s
Next, let's find the distance Bob has to cover in that time:
d = 42 - 3.4
d = 38.6 ft
Now we can find Bob's speed using the formula:
d = v * t
Solving for v:
v = d / t = 38.6 / 3.09
v= 12.50 ft/s (rounded to the nearest hundredth)
Therefore Bob needs to run at a speed of 12.50 ft/s in order to catch the elevator.
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Find the length of AE if BD is a midsegment. PLEASE HELP
The length of AE is given as follows:
AE = 7 units.
What is the midsegment theorem?The midsegment of a triangle states that the segment connecting the midpoints of two sides of a triangle is parallel to and half the length of the third side.
The midsegment of the triangle in this problem is given by the following segment:
BD.
The length of BD is given as follows:
BD = 2 - (-1.5)
BD = 3.5 units.
Hence the length of AE is obtained as follows:
AE = 2BD
AE = 2 x 3.5
AE = 7 units.
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The equation 9t = 27.99 models a constant rate situation.
What is 1t?
The value of t from the given equation is 3.11.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given equation is 9t=27.99
The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.
Now, t=27.99/9
t=3.11
Therefore, the value of t is 3.11.
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54 kilometers in 4 hours = 81 kilometers in __ hours
Answer:
6 hours
Step-by-step explanation:
create a proportion:
54 km/4 hrs equals 81km/? hours
[tex]\frac{54}{4}[/tex] = [tex]\frac{81}{?}[/tex]
solve a proportion by cross-multiplying:
54? = 324
? = 324/54
? = 6
Answer:
6 hr
Step-by-step explanation:
If 54 km --> 4 hr then,
81 km --> ? hr
You can make a rule of three:
? hr = (81*4)/54
? hr = 6
So 81 km in 6 hours
Determine whether the sequence converges or diverges. If it converges, find the limit. (If an answer does not exist, enter DNE.) a_n = sin (4n)/2n + squareroot n lim n rightarrow a_n = DNE
The sequence aₙ = sin (4n)/2n + √n diverges because it does not have a limit that can be expressed in a finite manner.
A sequence is a set of numbers that follow a certain pattern. The behavior of the sequence as n approaches infinity determines whether the sequence converges or diverges.
In this case, the sequence
=> aₙ = sin (4n)/2n + √n.
To determine whether the sequence converges or diverges, we need to find the limit as n approaches infinity.
However, in this case, the limit as n approaches infinity is DNE, meaning it does not exist. This means that the sequence diverges, as it does not approach a limit as n approaches infinity.
In this case, the sequence
=> aₙ = sin (4n)/2n + √n
converges to DNE, meaning that it does not have a limit that can be expressed in a finite manner.
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15 POINTS PLEASE HELP
An anonymous piece of mail was sent to Evie's house that contained a very threatening message. How can investigators BEST attempt to identify the
person who sent the letter?
A. Test for gunpowder residue on the inside of the envelope.
B. Check the licked part of the envelope for a saliva sample.
C.
Look for a sweat sample underneath the postal stamp.
D. Match the envelope to the same size and brand sold in stores.
Best investigator are to check the licked part of the envelope for a saliva sample.The correct option is B
What is investigators?An investigator is someone who carries out investigations especially as part of their job.
Therefore, An Investigators work with law enforcement agencies, individuals, and businesses to investigate and solve crimes to secure a successful conviction. They conduct detailed investigations of complex criminal activities and other violations of local, federal or state law.
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1
• En una plaza comercial se desea construir un
domo que permita dar sombra a un espacio de
forma triangular. ¿En qué punto se recomienda
poner el pilar de apoyo que sostenga el domo?
¿A qué se debe esto?
find the following limit or state that it does not exist. x-3 x-9
The limit of (x-3) / (x-9) as x approaches 9 does not exist due to the undefined value in the denominator.
The limit is an important concept in calculus that describes the behavior of a function as the independent variable approaches a specific value.
In this problem, we want to find the limit of the expression (x-3) / (x-9) as x approaches a specific value.
To find the limit, we must substitute values of x that are very close to the specific value and see what the expression approaches.
However, it is important to note that if the limit does not exist, then the function is undefined or has a vertical asymptote at the specific value.
In this case, it is easy to see that the limit does not exist as x approaches 9 because the denominator of the fraction is equal to 0, which is undefined.
The fraction becomes undefined at x = 9 and the limit does not exist.
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graph the function f(x) on the interval [,], showing the addition of the rectangles associated with the riemann sum given that is the of the kth subinterval.
Rectangles that represent the Riemann sum for the kth subinterval are displayed on the graph of f(x) on the interval [a,b]. The value of f(x) at the subinterval's right endpoint determines the height of each rectangle.
The function across the specified interval is represented graphically by the graph of f(x) over the interval [a,b]. The graph will display a line with the value of f(x) plotted on the y-axis and the values of the interval on the x-axis. Rectangles indicating the Riemann sum for the kth subinterval will also be displayed on the graph. The value of f(x) at the subinterval's right endpoint determines the height of each rectangle. This produces a graphic depiction of the function's area under the curve, which is equal to the total of the subintervals. Additionally, the graph will display the total number of rectangles, which represents the Riemann sum of the function on the specified interval.
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please help this is last question
Answer:
p = -5
Step-by-step explanation:
We know both of the angles combine to make 180 degrees, which mean
(5p + 7) = (4p + 2)
Let's solve
5p + 7 = 4p + 2
5p = 4p -5
p = -5
Find the equation of the line that is tangent to the curve y = 3xcosx at the point (π,−3π). The equation of this tangent line can be written in the form y = mx+b. Compute m and b.
As the equation of tangent line is y = -3x, the value of slope, m is -3 and value of b is 0.
To find the equation of the tangent line at the point (π, -3π), we need to find the derivative of the function y = 3xcos(x), which is
y' = 3cos(x) - 3xsin(x)
and then evaluate the derivative at x = π to find the slope of the tangent line.
The slope at x = π is
m = 3cos(π) - 3πsin(π) = -3
So, the equation of the tangent line is y = -3x + b.
To find the value of b, we use the point (π, -3π) and the slope -3:
-3π = -3 * π + b
b = 0
So, the equation of the line tangent to the curve y = 3xcos(x) at the point (π, -3π) is y = -3x + 0 or simply y = -3x.
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PLEASE HELP ME. THE ASSIGNMENT IS ON THE SCREEN
Answer:
D.) the ovens temperature after 1 minute.
Step-by-step explanation:
if "x" is the number of minutes that have passed then the output is the temp after the oven was preheating for 'x" amount of minutes
How ti calculate loan interest?
Divide your interest rate by the number of payments you’ll make that year
How to calculate simple interest
By utilizing the following calculation, you may get your total interest:
Interest is calculated as follows: principal loan amount x interest rate x duration
The simple interest formula is $20,000 x.05 x 5 = $5,000 in interest, for instance, if you take out a $20,000 loan with a five-year term and a 5% interest rate.
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"Simple Interest is Principal x Interest Rate x Time" is the written formula.The simplest method for computing interest is using this equation.
What is the simplest interest formula?The easy interest calculation is as follows:Interest is equal to P x R x T.principal amount (the beginning balance). The interest rate, R (usually per year, expressed as a decimal).T is the quantity of time periods (generally one-year time periods).If, for instance, your current APR is 17.99% and you currently owe $500 on your credit card over the course of the month, you can get your monthly interest rate by dividing 17.99% by 12, which is roughly 1.49%.To get a monthly payment of $7.45 from $500, multiply the sum by 0.0149.Divide the principal by the time, interest rate, and time period to calculate simple interest.The equation is expressed as "Simple Interest = Principal x Interest Rate x Time."It is easiest to calculate interest using this equation.To learn more about Interest refer
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I need help my homework is due in 15 mins
Answer:
1st box = 200
2nd box = 7
3rd box = 237
4th box = 270
5th box = 333
Step-by-step explanation:
1st box:
Hight = 6 ft
Base = ?
Area = 14tf ²
What's base?
Shelley has a piece of yellow ribbon that is 7.7 inches long and a piece of purple ribbon that is 6.99 inches long. How much longer is the yellow ribbon?
HELPPpp
Answer:
0.71
Step-by-step explanation:
To find how much longer the 1st one is, subtract: 7.7-6.99=0.71
in a group of 60 people, 27 like cold drinks and 42 like hot drinks and each person likes at least one of the two drinks. how many like both cold drinks and hot drinks? (you can use venn diagrams for this problem.)
In a group of 60 people, 27 like cold drinks and 42 like hot drinks and each persons likes at least one of the two drinks, so 9 people like both cold drinks and hot drinks.
Let A= set of people who like cold drinks.
B = Set of people who like hot drinks.
Since there is group of 60 people so the number of element in AUB is 60.
n(A⋃B) = 60
27 like cold drinks so the number of element in set A is 27.
42 like hot drinks so the number of element in set B is 42.
We have, n(A) = 27 and n(B) = 42
We know that,
n(A∩B) = n(A) + n(B) − n(A⋃B)
By putting the values of n(A), n(B) and n(AUB),
we get
n(A∩B) = 27 + 42 − 60 = 9
Therefore, 9 people like both cold drink and hot drink.
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In a group of 60 people, 27 like cold drinks and 42 like hot drinks and each person likes at least one of the two drinks, so 9 people like both cold drinks and hot drinks.
Let A= set of people who like cold drinks.
B = Set of people who like hot drinks.
Since there is group of 60 people so the number of elements in AUB is 60.
n(A⋃B) = 60
27 like cold drinks so the number of elements in set A is 27.
42 like hot drinks so the number of elements in set B is 42.
We have, n(A) = 27 and n(B) = 42
We know that,
n(A∩B) = n(A) + n(B) − n(A⋃B)
By putting the values of n(A), n(B) and n(AUB),
we get
n(A∩B) = 27 + 42 − 60 = 9
Therefore, 9 people like both cold drink and hot drink.
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how many cards in the deck are either a jack or a heart?
The number of cards in the deck that are either a jack or a heart = 16
We know that a standard deck of cards has four suites.
These four suits are:
a) Hearts,
b) Clubs,
c) Spades,
d) Diamonds.
Each suite has thirteen cards.
These thirteen cards are:
Ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen and king.
This means, the entire deck of cards has 52 cards total.
The number of Jack cards in a standard deck of cards = 4
The number of Hearts in a standard deck of cards = 13
This means, there are 13 + 3 = 16 cards in the deck are either a jack or a heart.
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use calculus to find the volume of a frustrum of a pyramid with square base of side , square top of side , and height ℎ.
The volume of the frustum of a pyramid with square base of side "b", square top of side "a", and height "h" is (b² - a²) × h / 3 cubic units.
Describe calculus.The two primary divisions of calculus, differential calculus and integral calculus, are concerned with rates of change and slopes of curves.
A pyramid's frustum can be thought of as two pyramids with the same height "h" and square bases on sides "a" and "b," as well as a square top on side "a" and that height.
The formulas below give the volume of a pyramid with a square base and sides "s" and height "h":
The volume of a pyramid with square base of side "s" and height "h" is given by:
V = (s² × h) / 3
The volume of the frustum can be found by subtracting the volume of the smaller pyramid from the volume of the larger pyramid:
V = [(b² × h) / 3] - [(a² × h) / 3] = (b² - a²) × h / 3
Hence, the volume of the frustum of a pyramid with square base of side "b", square top of side "a", and height "h" is (b² - a²) × h / 3 cubic units.
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What is the answer to 1+5s≤ – 4?
Answer:
This is what I found, but not sure if it's right.
4. You are painting the roof of a
boathouse. You are going to
place the base of a ladder
3.2 feet from the boathouse.
How long does the ladder
need to be to reach the
roof of the boathouse?
K
3.2 ft
12.6 ft
The length of the ladder is 12.9 feet
How to find the length of the ladderAssuming the height of the boat house is 12.6 feet
The problem is solved using the Pythagoras theorem is applicable to right angle triangle. the formula of the theorem is
hypotenuse² = opposite² + adjacent²
The length of the ladder is the hypotenuse
plugging the values as in the problem
let x be the required distance
x² = 3.2² +12.6²
x² = 166.49
x = √166.49
x = 12.9 feet
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Find the ratio of the volume of the triangular prism to the volume of the cuboid.
The ratio of the volume of the triangular prism to the volume of the cuboid is 1:2.
The volume of a triangular prism is calculated by multiplying the area of the base by the height of the prism. The volume of a cuboid is calculated by multiplying the length, width, and height of the cuboid.
For a triangular prism with base area A and height h, the volume is A x h.
For a cuboid with length l, width w, and height h, the volume is l x w x h.
Therefore, the ratio of the volume of the triangular prism to the volume of the cuboid is A x h : l x w x h, which simplifies to 1:2.
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let r(x) = f(g(h(x))), where h(1) = 2, g(2) = 4, h'(1) = 4, g'(2) = 4, and f '(4) = 7. find r'(1). r'(1)
The value of r'(1) is 112.
To find the derivative of r(x) at x = 1, we'll use the chain rule. The chain rule states that if r(x) = f(g(h(x))), then the derivative of r(x) with respect to x is given by r'(x) = f'(g(h(x))) * g'(h(x)) * h'(x).
When r(x) = f(g(h(x))) by chain rule
r'(x) = f'(g(h(x))) * g'(h(x)) * h'(x)
So r'(1) = f'(g(h(1))) * g'(h(1)) * h'(x)
As h(1) = 2 and h'(1) = 4
r'(1) = f'(g(2)) * g'(2) * 4
As g(2) = 4 and g'(2) = 4
r'(1) = f'(4) * 4 * 4
As f'(4) = 7
r'(1) = 7 * 4 * 4
r'(1) = 112
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a women made a deposit of $218. if her deposit consisted of 62 bills, some of them one-dollar bills and the rest being five-dollar bills, how many one-dollar bills did she deposit?
F = quantity of five dollar bills
S = quantity of single dollar bills
so she deposited 62 bills, that means that whatever F and S are, we know that F + S = 62.
we also know that all those amount to $218, so the fives are really 5*F or 5F from those $218, and the singles are just 1*S of the same $218, so we can also say that 5F + S = 218.
[tex]F+S=62\implies F=62-S \\\\\\ 5F+S=218\implies \stackrel{\textit{substituting from above}}{5(62-S) +S=218}\implies 310-5S+S=218 \\\\\\ 310-4S=218\implies 310=4S+218\implies 92=4S\implies \cfrac{92}{4}=S\implies 23=S[/tex]
mr crates, the principal at a local middle school, made a rule that there must be 1 adult for every 4 students attending a feild trip.
The solution to the equations are
The number of adults for 12 students is 3 adults
The number of adults for 24 students is 6 adults
The number of adults for 40 students is 10 adults
What is Proportion?The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.
The proportional equation is given as y ∝ x
And , y = kx where k is the proportionality constant
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Given data ,
Let the number of students for 1 adult be 4 students
So , the proportion of students to adults is 1 : 4
Now , the equation will be
The number of adults for 12 students = 12 / 4
The number of adults for 12 students = 3 adults
The number of adults for 24 students = 24 / 4
The number of adults for 24 students = 6 adults
The number of adults for 40 students = 40 / 4
The number of adults for 40 students = 10 adults
Now , when the number of students is 33 students
The number of adults = 33 / 4 = 8.25 adults ≈ 8 adults
Hence , the proportion is 1 : 4
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If an LTI system is modeled by a differential equation, can the transfer function of the D.E only be found if the input is a complex exponential, or can it be anything else?
Independent of the input, the transfer function. In cases when the input is not a complex exponential, you are probably interested in the result. The answer is that the output can be computed via convolution as long as the input satisfies certain constraints .
How does transfer function work?
A mathematical function called a transfer function of a system, sub-system, or component theoretically simulates the output of the system for each potential input.
Transfer functions are also known as system functions or network functions. They are frequently employed in electronic and control systems.
Why is the transfer function only specified for LTI systems?
The ratio between the Laplace transforms of the input and output signals under initial circumstances of zero can be used to define the transfer function of the LTI system.
Alternately, when the beginning circumstances are disregarded, the transfer function is described as the output to input ratio in the sdomain.
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