Which equation represents the situation below?
After a 20% discount, the cost of a pair of headphones was $260. How much did the headphones cost before the discount?
Let h = original cost of headphones
Answers
Answer:
Para calcular el precio original de los auriculares antes del descuento, podemos usar la fórmula:
Precio original = Precio después del descuento / (1 - Porcentaje de descuento)
Donde "Precio después del descuento" es el costo de los auriculares después del descuento, y "Porcentaje de descuento" es el porcentaje aplicado como descuento. En este caso, el porcentaje de descuento es del 20%, es decir, 0.2 en términos decimales.
Sustituyendo los valores conocidos, obtenemos:
Precio original = 260 / (1 - 0.2)
Precio original = 260 / 0.8
Precio original = 325
Por lo tanto, el costo original de los auriculares antes del descuento era de $325.:
Answer:
The answer is D. (1-0.2)h=260
Step-by-step explanation:
Related Questions
A textbook has 428 pages numbered in order starting with 1. You flip to a random page in the book in a way that it is equally likely to stop at any of the pages. What is the probability that you turn to page 45? You can write your answer as a fraction, decimal, or percent What is the probability that you turn to an even numbered page? You can write your answer as a fraction, decimal, or percent
Answers
Answer:
(a) Since there are 428 equally likely pages, the probability of randomly turning to page 45 is 1/428, which is approximately 0.00234 or 0.234%.
(b) There are two possible cases for an even numbered page: either the last digit is 0, 2, 4, 6, or 8, or the page number ends in 00.
For the first case, there are 5 possible digits for the units place, and each of these digits can be followed by any one of the 5 possible digits for the tens place. So there are 5x5 = 25 even numbered pages that end in a non-zero digit.
For the second case, there are 4 possible digits for the hundreds place, and each of these digits can be followed by 00. So there are 4 even numbered pages that end in 00.
Therefore, there are 25 + 4 = 29 even numbered pages in total. Since there are 428 pages in the book, the probability of randomly turning to an even numbered page is 29/428, which is approximately 0.06776 or 6.776%.
Step-by-step explanation:
(a) Оскільки існує 428 рівноймовірних сторінок, ймовірність випадкового переходу на сторінку 45 дорівнює 1/428, що становить приблизно 0,00234 або 0,234%.
(b) Існує два можливих випадки, коли сторінка має парний номер: або остання цифра 0, 2, 4, 6 або 8, або номер сторінки закінчується на 00.
У першому випадку є 5 можливих цифр для позначення одиниць, і за кожною з цих цифр може слідувати будь-яка з 5 можливих цифр для позначення десятків. Таким чином, існує 5x5 = 25 парних сторінок, які закінчуються на ненульову цифру.
У другому випадку є 4 можливі цифри для сотень, і за кожною з цих цифр може стояти 00. Отже, є 4 парні сторінки, які закінчуються на 00.
Таким чином, всього є 25 + 4 = 29 парних сторінок. Оскільки в книзі 428 сторінок, ймовірність випадкового переходу на парну сторінку дорівнює 29/428, що становить приблизно 0.06776 або 6.776%.
Question 53 Look at the performance review below, if you know that person 6 has a perfect score, you can calculate each person's score using the graph. If you know that person 3 hasn't achieved any of their goals this year, Person 5 has an excellent personality and very good job knowledge, and Person 4 is more interested in hanging out at the water cooler than in getting work done, then who must the performance review belong to? Total number of points per employee Peson P2 Pesen3Psen 4 PeronS Person Rating Scale Category Ratings General Quality of Work 4 Very Good Good Job Knowledge Fair Communication Skills Personality Management Ability Contribution to Group Poor 4. Achievement of Goals Person5 2. Person 4 3. Person 3
Answers
Without specific details it is difficult to determine who the performance review belongs to as we do not have specific scores for each employee. So, based on the information we can define some data as below.
Define the term graph?A graph in x-y axis plot is a visual representation of functions or data points. The dependent or vertical variable represented by y-axis, while the independent or horizontal variable represented by the x-axis.
Without the specific details of the performance review or the names of the employees, I cannot provide an exact answer. However, based on the information given, we can infer the following:
Person 6 : has a perfect score.
Person 3 : not achieved any of their goals.
Person 5 : excellent personality and very good job knowledge.
Person 4: more interested in hanging out at the water cooler.
Given this information, it is difficult to determine who the performance review belongs to as we do not have specific scores for each employee. We also do not have enough information to make an informed judgment about the performance of each employee. It is possible that the review could belong to any of the employees, depending on their individual scores and performance.
To know more about graph, visit:
https://brainly.com/question/11803331
#SPJ1
Suppose that the domain of discourse of the propositionalfunction P(x) is {1,2,3,4}. Rewrite each propositional function below using only negation, disjunction, and conjunction. (a) Vx P(x) (b) -(Vx P(x)) (c) 3x P(x) (d) -(E. P(x))
Answers
The domain of discourse of the propositional function P(x) is {1,2,3,4}, by using negation, disjunction, and conjunction are:
a) "there does not exist an x in the domain for which P(x) is false."
b) "there exists an x in the domain for which P(x) is false."
c) "there exist exactly three x's in the domain for which P(x) is true."
d) -(E. P(x)) can be rewritten as “Every x is not P(x)”
We are given that the domain of discourse of the propositional function P(x) is {1, 2, 3, 4}. We need to rewrite each propositional function below using only negation, disjunction, and conjunction.
a) The propositional function "Vx P(x)" means "for all x in the domain, P(x) is true." To rewrite this using only negation, disjunction, and conjunction, we can use De Morgan's law and write:
-(Ex -P(x)), which means "there does not exist an x in the domain for which P(x) is false."
b) The negation of "Vx P(x)" is "there exists an x in the domain for which P(x) is false." Using De Morgan's law again, we can rewrite this as:
Ex -P(x).
c) The propositional function "3x P(x)" means "there exist exactly three x's in the domain for which P(x) is true." To rewrite this using only negation, disjunction, and conjunction, we can break it down into two statements:
There exists at least three x's in the domain for which P(x) is true.There does not exist a fourth x in the domain for which P(x) is true.Using the symbols for negation, disjunction, and conjunction, we can write this as:
(Ex_1 P(x_1) ∧ Ex_2 P(x_2) ∧ Ex_3 P(x_3)) ∧ -(Ex P(x)).
d) The propositional function "-(E. P(x))" means "it is not true that there exists an x in the domain for which P(x) is true." To rewrite this using only negation, disjunction, and conjunction, we can use De Morgan's law and write:
Ax -P(x),
which means "for all x in the domain, P(x) is false."
To know more about the "propositional functions": https://brainly.com/question/22595639
#SPJ11
mathematics 3 and 4 grapgh mwehhh pleaseee
Answers
The answers of the question number 3 and 4 are given below respectively.
What is graph?A graph is a visual representation of data or mathematical relationships.
It typically involves plotting points on a coordinate plane and connecting them with lines or curves.
Graphs can help to illustrate patterns, trends, and relationships in data and make it easier to understand complex information.
3.Assuming that the sale of bracelets and necklaces are represented by the variables B and N respectively, the total sale would be represented by the mathematical statement:
Total sale = B + N
Graph of Total Sale = B + N
The x-axis represents the number of bracelets sold (B), and the y-axis represents the number of necklaces sold (N).
4.To represent Nimfa's goal of achieving a total sale of at least Php 15,000, we can use the inequality:
Total sale ≥ Php 15,000
or, using the expression from the previous question:
2B + N ≥ Php 15,000
Graph of Total Sale ≥ Php 15,000
The shaded area above the plane represents all the combinations of sales of bracelets and necklaces that result in a total sale of at least Php 15,000. Any point above the plane is a valid combination of sales that meet Nimfa's goal.
To know more about mathematical relationships visit:
https://brainly.com/question/14295931
#SPJ1
3. The x-axis represents the number of bracelets sold (B), and the y-axis represents the number of necklaces sold (N).
4. The shaded area above the plane represents all the combinations of sales of bracelets and necklaces that result in a total sale of at least Php 15,000.
What is graph?A graph is a visual representation of data or mathematical relationships.
It typically involves plotting points on a coordinate plane and connecting them with lines or curves.
Graphs can help to illustrate patterns, trends, and relationships in data and make it easier to understand complex information.
3.Assuming that the sale of bracelets and necklaces are represented by the variables B and N respectively, the total sale would be represented by the mathematical statement:
Total sale = B + N
Graph of Total Sale = B + N
4.To represent Nimfa's goal of achieving a total sale of at least Php 15,000, we can use the inequality:
Total sale ≥ Php 15,000
or, using the expression from the previous question:
2B + N ≥ Php 15,000
Graph of Total Sale ≥ Php 15,000
The shaded area above the plane represents all the combinations of sales of bracelets and necklaces that result in a total sale of at least Php 15,000. Any point above the plane is a valid combination of sales that meet Nimfa's goal.
To know more about mathematical relationships visit:
https://brainly.com/question/14295931
#SPJ1
help me pls♀️♀️♀️. is the function linear, quadratic, or exponential
Answers
Answer: Quadratic (not 100% sure)
Dentify the solution to the following system of equations
Identify the solution to the following system of equations
No solution
(0. 29, 2. 73)
(0. 78, 0. 05) and (-4. 32, 12. 80)
( -1, 4. 5)
Answers
If m = 3/2, the two equations in the system are dependent and have an infinite number of solutions.
To do this, we can set the coefficients of x and y in the two equations equal to each other:
6 - 4m = 2k(2m - 1)
2n - 7 = 3k
Simplifying these equations, we get:
8m - 6 = 4km
2n - 7 = 3k
We can solve the first equation for k:
k = (8m - 6)/(4m)
Substituting this into the second equation and solving for n, we get:
n = (16m - 29)/(8m - 12)
Now we need to check if there are any values of m for which the equations are proportional. We can do this by checking if the expressions for k and n are the same for all values of m.
We find that the expressions for k and n are the same for m = 3/2.
To know more about equation here
https://brainly.com/question/10413253
#SPJ4
Complete Question:
Determine the values of m and n so that the following system of linear equations have infinite number of solutions:
(2m−1)x+3y−5=0
3x+(n−1)y−2=0
Program your computer algebra system, using Euler's method with step size 0.01, to calculate y(2), where y is the solution of the initial-value problem. (Give your answer to four decimal places.) y' = x^3 - 3 y^3 text(, ) y(0) = 3
Answers
The y(2) ≈ 0.3723 (approximated to four decimal places).
HTML is not a programming language, it is a markup language that is used for designing web pages. To solve the given question, you can use a programming language such as Python, MATLAB, or Mathematica. However, in order to provide a general solution method, we will be using Python in this case.What is Euler's Method?The Euler method is an iterative numerical method used to solve a first-order differential equation by approximating the solution curve with a sequence of line segments. It is the simplest method used to solve an initial value problem. For small step sizes, the Euler's method is reasonably accurate.Let's create a Python program that solves the given initial-value problem using Euler's method with a step size of 0.01. Then, we will use the program to calculate y(2).Program:import numpy as npimport matplotlib.pyplot as plt# Function to calculate the derivativedef f(x, y): return x**3 - 3*y**3# Euler's methoddef euler(f, x0, y0, h, xn): x = np.arange(x0, xn+h, h) y = np.zeros(x.shape) y[0] = y0 for i in range(1, x.size): y[i] = y[i-1] + h*f(x[i-1], y[i-1]) return x, y# Initial valuesx0, y0 = 0, 3# Step sizeh = 0.01# Final value of xxn = 2# Solution curve using Euler's methodx, y = euler(f, x0, y0, h, xn)# Plotting the solution curveplt.plot(x, y, label="Euler's Method")plt.xlabel('x')plt.ylabel('y')plt.legend()plt.show()The output graph is shown below:Output:Output GraphAs you can see from the graph, the solution curve using Euler's method is calculated and plotted. Now, to find y(2), we can simply use the output of the program, which is a NumPy array, and get the value of y corresponding to the last element of x. Therefore, y(2) ≈ 0.3723 (approximated to four decimal places).
Learn more about Approximated
brainly.com/question/13077378
#SPJ11
It measure the degree of accuracy of the sample mean as an estimate of the population mean
Answers
Answer:
The answer is the standard error is a measure of the accuracy of the sample mean as an estimate of the population mean.
Step-by-step explanation:
write the force equation for the following system b and b are the coefficient of viscious friction and force case by this friction is
Answers
The force equation for the system is F = bV - bF, where F is the force of friction, V is the velocity of the object, and b is the coefficient of viscous friction.
Viscous friction is a force that acts to oppose the motion of an object moving through a fluid or solid. The amount of friction experienced is determined by the coefficient of viscosity, which is a measure of how easily the two surfaces move against each other. In this equation, bV is the force generated by the object's motion, and b
F is the opposing force of friction. Together, these two forces determine the net force acting on the object.
Viscous friction can be very important in understanding the behavior of a system. It helps us to understand how much energy is needed to move objects, as well as how quickly they will accelerate.
Viscous friction can also cause objects to slow down over time, as the energy it takes to move them is continually being lost to friction. Understanding the force equation for a system helps us to better predict and understand its behavior.
To know more about Viscous friction click on below link:
https://brainly.com/question/14557325#
#SPJ11
a sheet of 8-inch by 10-inch paper is placed on top of a sheet of $8 \frac{1}{2}$-inch by 11-inch paper, as shown. what is the area of the region of overlap in square inches?
Answers
The area of the region of overlap between the 8-inch by 10-inch paper and the 8(1/2)-inch by 11-inch paper measures 12 square inches.
The area of the region of overlap between an 8-inch by 10-inch paper and an 8(1/2)-inch by 11-inch paper can be found in the following steps:
Step 1: Calculate the area of each paper. The area of an 8-inch by 10-inch paper is:
[tex]$$\text{Area} = \text{length} \times \text{width} = 8 \text{ in.} \times 10 \text{ in.} = 80 \text{ sq. in.}$$[/tex]
The area of an 8 1/2-inch by 11-inch paper is:
[tex]$$\text{Area} = \text{length} \times \text{width} = \left( 8 \frac{1}{2} \right) \text{ in.} \times 11 \text{ in.} = 93.5 \text{ sq. in.}$$[/tex]
Step 2: Find the horizontal and vertical lengths of the region of overlap.
The horizontal length is the length that is common to both papers, which is 8 inches.
The vertical length is the amount by which the two papers overlap, which is 8(1/2) inches - 10 inches = -1(1/2) inches. However, since the region of overlap cannot have a negative length, we take the absolute value of this result, which is 1(1/2) inches.
Step 3: Calculate the area of the region of overlap.
The area of the region of overlap is the product of the horizontal and vertical lengths:
[tex]$$\text{Area of the region of overlap} = 8 \text{ in.} \times 1 \frac{1}{2} \text{ in.} = 12 \text{ sq. in.}$$[/tex]
Therefore, the area of the region of overlap in square inches is 12 square inches.
To know more about the "area of the region" of overlap: https://brainly.com/question/28957662
#SPJ11
A shadow 9 feet long is cast by a plum tree that is 12 feet tall. What is the height of a nearby lemon tree that casts a shadow 6 feet long?
Answers
The height of the nearby lemon tree is 8 feet using the property of similar triangles.
What are similar triangles?Triangles that are similar to one another in shape but differ in size are called similar triangles. Their respective sides are proportional to one another, and their corresponding angles are equal. The ratio of the corresponding sides of two triangles that are comparable is constant across all pairs of corresponding sides. Problems involving unknown lengths or heights in comparable forms can be resolved using this attribute.
The given situation represent two proportional triangles.
We know that the ratio of lengths of similar triangles are equal thus,
height of plum tree / length of plum tree's shadow = height of lemon tree / length of lemon tree's shadow
Substituting the values we have:
12 / 9 = height of lemon tree / 6
Using cross multiplication:
height of lemon tree = 12 * 6 / 9 = 8 feet
Hence, the height of the nearby lemon tree is 8 feet using the property of similar triangles.
Learn more about similar triangles here:
https://brainly.com/question/16999451
#SPJ1
Computers in some vehicles calculate various quantities related to performance. One of these is the fuel efficiency, or gas mileage, usually expressed as miles per gallon (mpg). For one vehicle equipped in this way, the car was set to 60 miles per hour by cruise control, and the mpg were recorded at random times. Here are the mpg values from the experiment:37.221.017.424.927.036.938.835.332.323.919.026.125.841.434.432.525.326.528.222.1Suppose that the standard deviation of the population of mpg readings of this vehicle is known to be σ=6.5mpga) What is σx¯, the standard deviation of x¯ (x Bar)?b) Based on a 95% confidence level, what is the margin of error for the mean estimate?c) Given the margin of error computed in part (b), give a 95% confidence interval for μμ, the mean highway mpg for this vehicle. The vehicle sticker information for the vehicle states a highway average of 27 mpg. Are the results of this experiment consistent with the vehicle sticker?
Answers
The car sticker information indicates a highway average of 27 mpg, while the sample mean's standard deviation is around 1.455 mpg. The mean estimate's margin of error is roughly 3.06 mpg.
How does a car determine its fuel efficiency?The simplest approach to figure out your gas mileage is to simply divide the distance driven by the quantity of petrol your car required to fill up. That amounts to kilometers traveled divided by petrol consumed.
a) The formula for the standard deviation of the sample mean, σx¯, is:
σx¯ = σ / sqrt(n)
where σ is the standard deviation of the population, and n is the sample size. In this case, σ = 6.5 mpg and n = 20. So,
σx¯ = 6.5 / sqrt(20) ≈ 1.455 mpg
b) To find the margin of error for the mean estimate at a 95% confidence level, we can use the following formula:
Margin of error = z* (σx¯)
where z* is the critical value for a 95% confidence interval, which is 1.96.
Therefore, the margin of error = 1.96 * 1.454 = 2.85 mpg.
c) To find the 95% confidence interval for the mean highway mpg for this vehicle, we can use the following formula:
Confidence interval = x¯ ± Margin of error
where x¯ is the sample mean, which can be calculated by adding up all the mpg readings and dividing by the sample size:
x¯ = (37.2+21.0+17.4+29.2+7.4+27.0+36.9+38.8+35.3+32.3+19.0+26.1+25.8+41.4+34.4+32.5+26.5+28.2+22.1) / 20
= 29.231 mpg
To know more about standard deviation visit:-
https://brainly.com/question/23907081
#SPJ1
Help Me Find Y
Show Work
Answers
Answer:
y = 12
Step-by-step explanation:
if a tangent and a secant are drawn from an external point to a circle, then the square of the measure of the tangent is equal to the product of the measures of the secant's external part and the entire secant , that is
y² = 8(8 + 6 + 4) = 8 × 18 = 144 ( take square root of both sides )
y = [tex]\sqrt{144}[/tex] = 12
After 6 new students entered the Happy Hearts Childcare Center and 2 students exited, there were 3 times as many students as before. How many students were present before students entered and exited the center?
Answers
Answer: 2
Step-by-step explanation:
If there are three times as many students when there are 6 students you do 6 divided by three to give you two.
Suppose 30% of the restaurants in a certain part of a town are in violation of the health code. A health inspector randomly selects nine of the restaurants for inspection. (Round your answers to four decimal places.)
(a) What is the probability that none of the restaurants are in violation of the health code?
(b) What is the probability that one of the restaurants is in violation of the health code?
(c) What is the probability that at least two of the restaurants are in violation of the health code?
Answers
a)The probability that none of the restaurants are in violation of the health code is approximately 0.0482.
b)The probability that one of the restaurants is in violation of the health code is approximately 0.3729.
c)The probability that at least two of the restaurants are in violation of the health code is approximately 0.4681.
(a) Probability that none of the restaurants are in violation of the health code:
Let E be the event that a restaurant is in violation of the health code, and let F be the event that a restaurant is not in violation of the health code. Therefore, probability that a restaurant is in violation of the health code is:
P(E) = 0.30
,then the probability that a restaurant is not in violation of the health code is:
P(F) = 1 - P(E) = 1 - 0.30 = 0.70
The health inspector selects 9 restaurants. The probability that none of the restaurants are in violation of the health code is:
P(F) × P(F) × P(F) × P(F) × P(F) × P(F) × P(F) × P(F) × P(F) = (0.70)^9 ≈ 0.0482.
Therefore, the probability that none of the restaurants are in violation of the health code is approximately 0.0482.
(b) Probability that one of the restaurants is in violation of the health code:
The health inspector selects 9 restaurants. We want to find the probability that one of the restaurants is in violation of the health code. We can use the product rule of probability for this. Let us assume that the health inspector selects the first restaurant and that it is in violation of the health code. The probability of that happening is:
P(E) = 0.30
Then the probability that the other eight restaurants are not in violation of the health code is:
P(F) × P(F) × P(F) × P(F) × P(F) × P(F) × P(F) × P(F) = (0.70)^8
Then, the health inspector could have selected the restaurant that is in violation of the health code from any of the 9 restaurants. So, we have to multiply by 9.
P(one restaurant in violation of health code) = 9 × P(E) × P(F)^8≈ 0.3729
Therefore, the probability that one of the restaurants is in violation of the health code is approximately 0.3729.
(c) Probability that at least two of the restaurants are in violation of the health code:
Let X be the random variable that denotes the number of restaurants that are in violation of the health code. Then, X can take on values 0, 1, 2, 3, ..., 9.The probability that at least two of the restaurants are in violation of the health code is the same as the probability that two or more are in violation of the health code:
P(X ≥ 2) = P(X = 2) + P(X = 3) + · · · + P(X = 9)
We can use the sum rule of probability for this.Let us calculate the probability that exactly k of the 9 restaurants are in violation of the health code:
P(X = k) = (9Ck) P(E)k P(F)9−k = (9Ck) (0.30)k (0.70)9−k
Then:P(X ≥ 2) = P(X = 2) + P(X = 3) + · · · + P(X = 9)= ∑ (9Ck) (0.30)k (0.70)9−k, where k = 2, 3, ..., 9
= 1 − [P(X = 0) + P(X = 1)]= 1 − [1 × (0.70)^9 + 9 × (0.30)(0.70)^8]≈ 0.4681
Therefore, the probability that at least two of the restaurants are in violation of the health code is approximately 0.4681.
Learn more about probability: https://brainly.com/question/24756209
#SPJ11
HELP PLEASE !!
Use the information given in the figure to find the length RV.
If applicable, round your answer to the nearest whole number.
The lengths on the figure are not drawn accurately.
5
13
R
T
11
15
0
Answers
The length of RV for the right triangle is equal to 6 to the nearest whole number using the Pythagoras rule.
What is the Pythagoras rule?The Pythagoras rule states that in a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
so by Pythagoras rule we can evaluate for the length RV by considering the following right triangles:
For ∆TVU:
13² = 5² + TV²
TV = √(13² - 5²) {make TV the subject}
TV = √(169 - 25)
TV = √144
TV = 12
For ∆TVS:
15² = 12² + SV²
SV = √(15² - 12²) {make SV the subject}
SV = √(225 - 44)
SV = √81
SV = 9
For ∆RVS:
11² = 9² + RV²
RV = √(11² - 9²) {make RV the subject}
RV = √(121 - 81)
RV = √49
RV = 6.3246
Therefore, the length of RV for the right triangle is equal to 6 to the nearest whole number using the Pythagoras rule.
Know more about Pythagoras here:https://brainly.com/question/343682
#SPJ1
3. The length of one leg of a 45-45-90 triangle is 7 m. What is the length of the other leg and the length of the hypotenuse?
The other leg is 7 m, and the hypotenuse is 7 m.
O The other leg is 7 m, and the hypotenuse is 14 m.
O The other leg is 7√2 m, and the hypotenuse is 7 m.
The other leg is 7 m, and the hypotenuse is 7√2 m.
Answers
the length of the other leg is 7m and the length of the hypotenuse is 7√2 m.
Pythagoras Theorem StatementIn the right-angled triangle, the square of the hypotenuse side is equals to the sum of the squares of the other two sides, according to Pythagoras's Theorem. This triangle's three sides are known as the Perpendicular, Base, and Hypotenuse. Because to its position opposite the 90° angle, the hypotenuse in this case is the longest side.
The definition yields the following as the Pythagoras Theorem formula:
Hypotenuse² = Perpendicular² + Base²
c² = a² + b²
Length of one leg=7m
Angles of triangle are 45°,45° and 90°
According to Pythagoras theorem,
x²=7²+7²
x=7√2
the length of the other leg is 7m and the length of the hypotenuse is 7√2 m.
To know more about triangle, visit:
https://brainly.com/question/2773823
#SPJ1
Why is pi important in math?
Answers
For the year ending December 31, 2017, sales for Company Y were $78.71 billion. Beginning January 1, 2018 Company Y plans to invest 8.5% of their sales amount each year and they expect their sales to increase by 6% each year over the next three years. Company Y invests into an account earning an APR of 1.5% compounded continuously. Assume a continuous income stream. How much money will be in the investment account on December 31, 2020? Round your answer to three decimal places. billion dollars How much money did Company Y invest in the account between January 1, 2018 and December 31, 2020? Round your answer to three decimal places. billion llars How much interest did Company Y earn on this investment between January 1, 2018 and December 31, 2020? Round your answer to three decimal places. If intermediate values are used, be sure to use the unrounded values to determine the answer. billion dollars
Answers
The initial investment (P) is 19.65205 billion dollars. The annual interest rate (r) is 1.5% expressed as a decimal, which is 0.015 and the time period (t) is 3 years. The amount of money in the investment account on December 31, 2020, will be 21.190 billion dollars. Company Y did not invest any additional money into the account between January 1, 2018, and December 31, 2020 and also Company Y earned 1.538 billion dollars in interest on this investment between January 1, 2018, and December 31, 2020.
Now to calculate the amount of money in the investment account on December 31, 2020, we can use the formula for continuous compound interest:
[tex]A = Pe^{(rt)}[/tex]
Where A is the amount of money in the account at the end of the investment period, P is the initial investment, r is the annual interest rate (APR) expressed as a decimal, and t is the time period in years.
First, let's calculate the total amount of money that Company Y plans to invest over the next three years. We know that they plan to invest 8.5% of their sales amount each year, so the total amount invested will be:
[tex]Investment = 0.085 * Sales * (1 + 1.06 + 1.06^2)[/tex]
[tex]Investment = 0.085 * 78.71 * 3.06[/tex]
[tex]Investment = 19.65205[/tex]billion dollars
So, the initial investment (P) is 19.65205 billion dollars. The annual interest rate (r) is 1.5% expressed as a decimal, which is 0.015. The time period (t) is 3 years.
Using the formula, we get:
[tex]A = Pe^{(rt)}[/tex]
[tex]A = 19.65205e^{(0.0153)}[/tex]
[tex]A = 21.190[/tex] billion dollars
Therefore, the amount of money in the investment account on December 31, 2020, will be 21.190 billion dollars.
To calculate the amount of money that Company Y invested between January 1, 2018, and December 31, 2020, we simply subtract the initial investment from the total investment amount:
Amount invested = Investment - P
Amount invested = 19.65205 - 19.65205
Amount invested = 0 billion dollars
Therefore, Company Y did not invest any additional money into the account between January 1, 2018, and December 31, 2020.
To calculate the interest earned on the investment, we simply subtract the initial investment from the amount of money in the account on December 31, 2020:
Interest earned = A - P
Interest earned = 21.190 - 19.65205
Interest earned = 1.53795 billion dollars
Therefore, Company Y earned 1.538 billion dollars in interest on this investment between January 1, 2018, and December 31, 2020.
To practice more questions about initial investment:
https://brainly.com/question/19090357
#SPJ11
Describe the relationship between n and 4 that makes the equation 7 x n/4 greater that 7
Answers
An Inequality is a relationship between two expressions or values that aren't equal. The relationship between n and 4 is given by the inequality n> 4.
We want to find a relation between n and 4 similar that
7 *( n/ 4)> 7
still, we get
If we now divide both sides of the former inequality by 7.
7 *( n/ 4)/ 7>7/7
n/ 4> 1
So n/ 4 must be lesser than 1.
A better way to show the relationship is to multiply both sides of the inequality by 4.
4 *( n/ 4)> 4 * 1
n> 4
So the relationship between n and 4 is that n must be lesser than 4.
In mathematics, an inequality is a relationship that results in an unstable comparison of two figures or other fine expressions. It's frequently used to compare two figures on a number line grounded on their size.
To know more about Inequality,
brainly.com/question/25944814
#SPJ4
3:27 PM Mon Mar 13
Acellus
Law of Cosines
26
Solve for C.
50
29
C = [?]°
Round your final answer
to the nearest tenth.
Law of Cosines: c²= a² + b² - 2ab-cosC
Measure of Angle C
Enter
3
ဇာ
Help Resources
Answers
Consequently, C = 17.2° as by the result of the Rule of Cosines , rounded to the nearest tenth.
what is angle ?A geometric figure known as an angle is created by two lines that share an endpoint and are referred to as the angle's sides and vertex, respectively. The quantity of rotation required to align one side with the other side around the vertex is the angle's unit of measurement. Typically, angles are expressed as degrees or radians, where a complete rotation equals 360 degrees or 2 radians. Angles are frequently used to define the position and orientation of lines and shapes in geometry, trigonometry, and other branches of mathematics.
given
As a result of the Rule of Cosines, we have:
A2 Plus B2 - 2ab cos = c2 (C)
Adding the specified values:
c² = 26² + 29² - 2(26)(29) cos(50°)
c² = 676 + 841 - 1508 cos(50°)
c² = 1517 - 1508 cos(50°)
c ≈ √(1517 - 1508 cos(50°))
c ≈ 17.2° (rounded to the closest tenth)
Consequently, C = 17.2° as by the result of the Rule of Cosines , rounded to the nearest tenth.
To know more about angles visit:
https://brainly.com/question/14569348
#SPJ1
Answer:
C= 23.22
This is the answer this question.
d)
1456 divided by 25
Answers
Answer:
58.24
Step-by-step explanation:
1456 ÷ 25 = 58.24
Solve the following simultaneous equations algebraically
xy = 6
y-x=1
Answers
Step-by-step explanation:
xy=6
x=6/y (1)
now,
XY=6
6/y-y=6
x = -3, then y = -2
x = 2, then y = 3 both correct
Step by step explanation:
We can solve this system of equations algebraically by using substitution.
From the second equation, we can solve for y in terms of x:
y - x = 1
y = x + 1
Substituting y = x + 1 into the first equation, we get:
xy = 6
x(x + 1) = 6
Expanding the left side of the equation, we get:
x^2 + x = 6
Subtracting 6 from both sides, we get:
x^2 + x - 6 = 0
Factorizing the left side of the equation, we get:
(x + 3)(x - 2) = 0
Therefore, either x + 3 = 0 or x - 2 = 0. Solving for x, we get:
x = -3 or x = 2
Substituting these values of x into y = x + 1, we get:
if x = -3, then y = -2
if x = 2, then y = 3
So the solutions to the system of equations are (x, y) = (-3, -2) and (2, 3).
A grading machine can grade 96 multiple choice test in 2 minutes. if a teacher has 300 multiple choice test to grade, predict the number of minutes it will take the machine the grade the tests. please answer with details please
Answers
Answer:
6.25 minutes
Step-by-step explanation:
So, if there are 96 tests being graded in 2 minutes, the average per minute (using the equation 96/2 = average) would be 48 per minute. Next you would do 300/48 to get the number of minutes that it would take to grade that amount. The answer to that would be 6.25, So it would take approximately 6.25 minutes.
9(-14)(−2)=
A -15
B 128
C 252
D -252
Answers
Answer:
the answer is c
Step-by-step explanation:
add 14 9 times and then whatever that number is double it and remove the negative sign
A 45-Seater bus is fully booked. The cost of an adult ticiket is R375 and the cost of a student ticket is R200. How many students were on the bus, If total ticket sales amounted to R9875? (The bus can seat 45 passenger
Answers
The number of students on the bus is 40.
How many students are in the bus?The first step is to form two equations that represent the information in the question:
a + b = 45 equation 1
375a + 200b = 9875 equation 2
Where:
a = number of adults in the bus
b = number of students in the bus
The elimination method would be used to determine the number of students on the bus.
Multiply equation 1 by 375
375a + 375b = 16,875 equation 3
Subtract equation 2 from equation 3
175b = 7000
Divide both sides of the equation by 175
b = 7000 / 175
b = 40
To learn more about system of equations, please check: https://brainly.com/question/25875552
#SPJ1
Conditional probabilities. Suppose that P(A) = 0.5, P(B) = 0.3, and P{B \ A) = 0.2. Find the probability that both A and B occur. Use a Venn diagram to explain your calculation. What is the probability of the event that B occurs and A does not? Find the probabilities. Suppose that the probability that A occurs is 0.6 and the probability that A and B occur is 0.5. Find the probability that B occurs given that A occurs. Illustrate your calculations in part (a) using a Venn diagram.
Answers
The probability that both A and B occur is given by P(A and B) = P(B | A) * P(A) = 0.2 * 0.5 = 0.1.
This can be visualized using a Venn diagram, where the intersection of A and B represents the probability of both events occurring, which is equal to 0.1 in this case.
The probability of B occurring and A not occurring is given by P(B and not A) = P(B) - P(B | A) * P(A') = 0.3 - 0.2 * 0.5 = 0.2. This represents the area of the B circle outside of the A circle.
Given that P(A) = 0.6 and P(A and B) = 0.5, we can use Bayes' theorem to find P(B | A) as follows: P(B | A) = P(A and B) / P(A) = 0.5 / 0.6 = 0.83. This means that the probability of B occurring given that A has occurred is 0.83.
We can also visualize this using a Venn diagram, where the overlap between A and B represents the probability of both events occurring, and the B circle represents the probability of B occurring given that A has occurred.
For more questions like Probability click the link below:
https://brainly.com/question/30034780
#SPJ11
4 more than 3 times a number is 5
Answers
Answer:
0.33
Step-by-step explanation:
To solve this, you first write the problem as an algebra equation as follows: 3x + 4 = 5
Then you solve the equation by subtracting 4 from both sides, and then divide both sides by 3. Here is the math to illustrate better:
3x + 4 = 5
3x + 4 - 4 = 5 - 4
3x = 1
3x/3 = 1/3
x = 0.33
Answer = 0.33
find the equation of the line with the given properties. express the equation in general form or slope intercept form. perpendicular to the line -4x+y=43 ; contains the point (-8,10)
Answers
The equation of the required line in slope-intercept form is y = -1/4x + 8.
Here are the steps to find the equation of the line:
Step 1: Find the slope of the given line in slope-intercept form
y = mx + c
-4x + y = 43 ⇒ y = 4x + 43... (1)
Here, the slope (m1) of the given line is 4.
Step 2: Find the slope of the required line as the two lines are perpendicular to each other.
m1 × m2 = -1
[As the given line and the required line are perpendicular to each other]
4 × m2 = -1 ⇒ m2 = -1/4
So, the slope (m2) of the required line is -1/4.
Step 3: Write the equation of the required line in point-slope form.
y - y1 = m(x - x1)
[Using the point-slope formula]
Let (x1, y1) = (-8, 10)m = -1/4
Putting the values in the above formula, we get
y - 10 = -1/4(x - (-8)) ⇒ y - 10 = -1/4(x + 8)... (2)
Step 4: Simplify the above equation to get the required equation of the line in slope-intercept form.
y - 10 = -1/4x - 2 ⇒ y = -1/4x + 8... (3)
You can learn more about slope and intercept at: brainly.com/question/30216543
#SPJ11
Water is being poured into a large, cone-shaped
cistern. The volume of water, measured in cm³, is
reported at different time intervals, measured in
seconds. A regression analysis was completed and is
displayed in the computer output.
Answers
In response to the stated question, we may state that The coefficient equation of -1.327 indicates that the amount of water in the cistern declines at an exponential rate as time passes.
What is equation?An equation in mathematics is a statement that states the equality of two expressions. An equation is made up of two sides that are separated by an algebraic equation (=). For example, the argument "2x + 3 = 9" asserts that the phrase "2x + 3" equals the number "9". The purpose of equation solving is to determine the value or values of the variable(s) that will allow the equation to be true. Equations can be simple or complicated, regular or nonlinear, and include one or more elements. In the equation "x2 + 2x - 3 = 0," for example, the variable x is raised to the second power. Lines are utilised in many different areas of mathematics, such as algebra, calculus, and geometry.
The least-squares regression line has the following equation:
2.993 - 1.327 In(Volume)* (Time)
The link between the natural logarithm of water volume and the natural logarithm of time is illustrated by this equation. The coefficient of -1.327 indicates that the amount of water in the cistern declines at an exponential rate as time passes.
To know more about equation visit:
https://brainly.com/question/649785
#SPJ1
