Answers
Answer:
100 is the answer
Step-by-step explanation:
2y+1= 4y-9
2y-2y+1=4y-2y-9
1= 2y-9
10=2y
5=y
Then I got the value of x
(5x)+(2x+19)=180
5x+2x+19=180
7x+19=180
7x=161
x=23
So the sum of x and y
23+5
=28
Am not sure but I hope this helps
Related Questions
please help me ( I will give brainlist for correct answer)
Answers
Using the concept of unit price, we see that;
Unit price of Brand A = $0.3654
Unit price of Brand B = $0.3785
The better buy is Brand A
How to find the unit price?A unit price is defined as the price for one item or measurement, such as a pound, a kilogram, or a pint, which can then be used to compare the same type of goods sold in differing weights and amounts.
Now, we are told that brand A has a pack of 24 pencils for $8.77. Thus;
Unit price of Brand A = 8.77/24 = $0.3654
We are told that brand B has a pack of 26 pencils for $9.84. Thus;
Unit price of Brand B= 9.84/26 = $0.3785
Thus;
Unit price of Brand A = $0.3654
Unit price of Brand B = $0.3785
Thus, brand A has the cheaper unit price and is thus the better buy.
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what is the value of p
Answers
The value of p is 18, it can be find out by using concepts of line and slope of a line.
What is the slope of a line?
Slope of line measures its steepness. Mathematically, its calculated as "rise over run".
Slope of a line : (y2 - y1)/(x2-x1)
In the given que,
given graph equation is of line ,
to find slope of graph : we need to differentiate the equation
[tex]\frac{d}{dx}[/tex](3y + 2x = 7) = 3[tex]\frac{dy}{dx}[/tex] + 2 = 0
So, [tex]\frac{dy}{dx}[/tex] = -2/3
We, if any line are perpendicular then
slope of one * slope of two = -1
So, slope of 1 = (-9-6)/(8-p)
= -15/(8-p)
slope of 2 = -2/3
Now product of both = -15/(8-p) * (-2/3 )
By simplifying all these equation,
we get p = 18.
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Write an expression in simplest form that represents the vertical distance between the two lines shown. Graph of a system of 2 linear equations. The line y equals x minus 1 goes through ordered pair 0 comma negative one and ordered pair 3 comma 2. The line y equals 2 x minus 4 goes through ordered pair 0 comma negative 4 and ordered pair 3 comma 2. Expression in simplest form: Question 2 What is the distance when $x=3$ ? Distance: What is the distance when $x=-3$ ? Distance: Skip to navigation
Answers
The distance between the two lines from the graph is 1 unit.
How to represent a straight line on a graph?To represent a straight line on a graph consider two points namely x and y intercepts of the line. To find x-intercept put y = 0 and for y-intercept put x = 0. Then draw a line passing through these two points.
The given equations are as below,
y = x - 1
And,
y = 2x - 4
They can be drawn on a graph as follows,
From the graph the distance between two lines can be calculated as the difference between their x-intercepts as,
2 - 1 = 1 unit.
Hence, the distance between the two lines is given as 1 unit.
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can sombody show work for this question "select the graph that correctly repesents the cost ,y, in dollars,to buy x grapefruit that cost 1.50 each
Answers
Answer:
y = 1.50x
the graph is shown below
Step-by-step explanation:
We are told that y is equal to the total cost of the amount of grapefruit purchased. The amount of grapefruit is represented by x. The price of $1.50 would be our rate or slope for the graph.
With this information, we can create the expression:
y = 1.50x
To find the graph you need, either type it in a graphing calculator, or put in your choice of "x" values to find different coordinate that would be on the graph.
For example:
y = 1.50(2)
y = 3
Coordinate 1 would be (2,3)
y = 1.50(0)
y = 0
Coordinate 2 would be (0,0)
With these two coordinates you can draw a line and match your graph with the right one you need for the answer.
Bruno Fruscalzo decided to start a small production facility in Sydney to sell gelato to the local restaurants. His local milk supplier charges $0.5 per kg of milk plus a $15 delivery fee (that is independent of the amount ordered). Bruno’s holding cost is $0.03 per kg per month. He needs 9250 kgs of milk per month.
a. Suppose Bruno orders 9750 kgs each time. What is his average inventory (kgs)? 4,875 kgs
(Round your answer to 1 decimal place.)
b. Suppose Bruno orders 6250 kgs each time. How many orders does he place with his supplier each year? 1.0 orders
c. How many kgs should Bruno order from his supplier with each order to minimize the sum of ordering and holding costs? 15 kgs
(Do not round intermediate calculations. Round your answer to 2 decimal places.)
d. If Bruno’s storage vessel can hold only 2000 kgs of milk, what would be Bruno’s annual ordering and holding costs?
(Do not round intermediate calculations. Round your answer to 2 decimal places.)
e. If Bruno’s storage vessel can hold only 5750 kgs of milk, what would be Bruno’s annual ordering and holding costs?
(Do not round intermediate calculations. Round your answer to 2 decimal places.)
f. Bruno’s supplier’s truck can carry 20,000 kgs of milk. The supplier does not want to deliver to more than 3 customers with each truck. Thus, the supplier requires a minimum order quantity of 6,500 kgs. If Bruno orders the minimum amount, what would be the sum of his annual ordering and holding costs? Assume he has a storage vessel large enough to hold 6,500 kgs.
(Round your answer to 3 decimal places.)
g. Bruno’s supplier offers a 4% discount when a customer orders a full truck, which is 20,000 kgs. Assume Bruno can store that quantity and the product will not spoil. If Bruno orders a full truck, what would be the inventory holding and ordering cost incurred per kg of milk? Assume the discount also applies to the holding cost.
1 decimal places required.
Answers
The cost of the milk from the supplier can be calculated as follows:
Cost of milk = (price per kg of milk) * (number of kg of milk) + delivery fee
= $0.5/kg * 9250 kg + $15
= $<<0.5*9250+15=4675>>4675
The holding cost of the milk can be calculated as follows:
Holding cost = (holding cost per kg per month) * (number of kg of milk)
= $0.03/kg/month * 9250 kg
= $<<0.03*9250=277.5>>277.5
Therefore, the total cost of the milk for Bruno's production facility is $4675 for the milk from the supplier and $277.5 for the holding cost, for a total of $4952.5.
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What is the input value for which g(x) = 3?
Answers
At the Input Value 9 the function g(x) will be 3.
What are Function?
A function in mathematics from a set X to the a set Y assigns exactly one element of Y to each element of X. The sets X and Y are collectively referred to as the function's domain and codomain, respectively. Al-Biruni as well as Sharaf al-Din al-Tusi, two Persian mathematicians, are responsible for the earliest known treatment of the concept of function. Initially, functions represented the idealised relationship between two varying quantities. A planet's position, for instance, depends on time. In the past, the idea was developed with infinitesimal calculus just at end of the seventeenth century, and indeed the functions that were taken into consideration were differentiable until the 19th century.
Solution:
So, it can be observed from the graph that g(x) = 3
when the value of x is 9
So, the input value is 9.
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when a hot object is placed in a water bath whose temperature is 25∘c, it cools from 100∘c to 50∘c in 180s. in another bath, the same cooling occurs in 160s. find the temperature of the second bath.
Answers
the sum of yhe age ofa father and his son us 50 years if the ages of the is 10 years. find the age of the father
in the last question, you calculated the frequency of the deleterious allele in the population. how many individuals in the village would be carriers for this disease?
Answers
32% of population individuals in the village would be carriers for this disease.
In the last question, we calculated the frequency of the deleterious allele in the population.
Now we have to find how many individuals in the village would be carriers for this disease.
A person with a single recessive detrimental allele will be healthy and will have little trouble passing the allele on to their offspring. There may be many recessive harmful alleles in a big population, but they rarely manifest themselves, therefore this is typically not an issue.
An allele frequency can be computed, by dividing the total number of copies of all the alleles at that specific genetic locus in the population by the number of times the allele of interest is observed in a population. A fraction, a percentage, or a decimal can be used to express allele frequencies.
So, 32% of population individuals in the village would be carriers for this disease.
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Alex tracked the number of cups of coffee he drank each day for the following month and
created a new probability distribution.
Number of Cups of Coffee, X 0
1 2 3 4
Relative Frequency, P(X) 0.035 0.579 0.286 0.080 0.020
According this new data, Alex is expected to drink 1.471 cups per day.
4. Calculate s(X) of Alex's new probability distribution. (1 point)
0.599
0.775
1.471
4.223
Answers
S(x) of Alex's new probability distribution will be 0.599.
What is Probability distribution ?
A mathematical function called a probability distribution explains how likely it is that a variable will take on several possible values. Utilizing graphs or probability tables, probability distributions are frequently represented.
Given, The no. of cups of coffee he drank with the probability.
If he drinks 1.471 cups per day, So the S(X) will be calculated in the following manner:
Step 1 : calculate the deviation of X from N.( here N = 1.471 )
Step 2 : find the square of (X- N).
Step 3 : multiply it with the given P(X).
Step 4 : find the sum of the (X-N)^2* P(X).
Hence, By following the given steps, we get S(X) as 0.599.
(Refer to the table given in Excel file).
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A figure has vertices (−13, 13),(26, 52), (39, 39). What would be the new coordinates of the vertices to the nearest tenth if the image were reduced by a scale factor of 0.77 with the origin as the center of dilation?
A. −16.9, 16.9), (33.8, 67.6), (50.7, 50.7)
B. (−10, 10), (20, 40), (30, 30)
C. (10, 10), (−20, 40), (−30, 30)
D. (16.9, 16.9), (33.8, 67.6), (50.7, 50.7)
Answers
The new coordinates after a reduced scale factor of 0.77 with the origin will be equal to (−10, 10), (20, 40), (30, 30). Hence, option B is correct.
What is a graph?In math, graph science is the theory of geometric structures called graphs that are used to represent pairwise different objects. Vertices—also known as nodes or points—that are joined by edges make form a network in this sense.
Undirected graphs, where edges connect two vertices equally, and focused therapy, where edges connect two vertices unevenly, are distinguished.
As per the data given in the question,
We will combine the x and y dimensions even by scale factors to shrink the picture by a multiplier of 0.77 with both the origins as that of the center of dilatation because the figure's vertices are (-13, 13), (26, 52), and (39, 39).
So, the first point is (-13, 13)
-13 × 0.77 = -10 and,
13 × 0.77 = 10
So, the new point is (-10, 10).
The second point is (26, 52).
26 × 0.77 = 20
52 × 0.77 = 40
So, the new point is (20, 40)
The third point is (39, 39)
39 × 0.77 = 30
39 × 0.77 = 30
So, the new point is (30, 30).
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solve the following quadratic equation by completing the square x^2 -8x=48
Answers
Answer: x=12,-4
Step-by-step explanation:
Step by step:
x^2-8x=48
Add the same value to both sides.
x^2-8x+?=48+?
Add 16 to both sides.
x^2-8x+16=48+16
Use a^2-2ab+b^2=(a-b)^2 to factor the equation.
(x-4)^2=48+16
Add the numbers.
(x-4)^2=64
Solve the equation.
(x-4)^2=64
x=-4, 12
Find the two numbers which on multiplication with √360 gives a rational number. Are these numbers rational or irrational? Please explain in detail it is urgent 50 points.
Answers
360 = 2^3 * 3^2 * 5
Then, we can take the square root of 360:
√360 = √(2^3 * 3^2 * 5) = 2 * 3 * √5
Now, we can see that if we multiply 2 or 3 by √360, we will get a rational number because both 2 and 3 are rational numbers. On the other hand, if we multiply √5 by √360, we will get an irrational number because √5 is an irrational number.
Therefore, the two numbers that, when multiplied by √360, give a rational number are 2 and 3. These numbers are rational.
Help with question 15
Answers
Quadrilateral STUV is similar to quadrilateral WXYZ. Find the measure of side XY.
Figures are not drawn to scale.
Answers
Answer:
11.4
Step-by-step explanation:
Given these quadrilaterals are similar, all we have to do is divide 21 (ST) by 5.7 (WX). That should give us 3.6842105263, which is the scale factor. To find the length of XY, we have to divide UT (the side similar to XY) by the scale factor. UT = 42, and 42/3.6842105263 = 11.4
Answer:
11.4
Step-by-step explanation:
how do we specify the one-way anova model in the model statement of proc glm? select one: a. model response variable*grouping variable; b. model response variable; (the grouping variable is only specified in the class statement.) c. model grouping variable
Answers
We specify the one-way anova model in the model statement of proc glm is model response variable; (the grouping variable is only specified in the class statement.)
So option b. is the correct option of the given statement.
We define variables for what purpose?Information that needs to be accessed and changed by a computer program is stored in variables. In order to make our programs more understandable to ourselves and the reader, they also offer a mechanism to label data with a descriptive name.
How should variables be used?Values can be stored in variables. In order to use a variable, we must first declare it so the program is aware of it and then assign it so the program is aware of the value we are storing in the variable.
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i need help answering with steps
-40-2(3m+1/2) =7m-2
Answers
Answer:
Step-by-step explanation:
-Start by distributing the 2, -2(3m+1/2).
-Getting -6m-1, your equation should look like -40-6m-1=7m-2
-Combine -40 and -1 to get -41, and then add the -6m to the other side.
-The equation should look like -41=13m-2. Add the 2 to the -41 to get -39.
-Now, we have -39=13m. divide both sides by 13 to get m=-3.
what is the sum of the rational expressions below? 3x/x 2
Answers
The rational expression is 4x² - 3x /(x + 9)(x -4).
How do you sum rational expressions?A ratio of two polynomials defines a rational expression. When adding or subtracting two rational expressions with the same denominator, we simply add or subtract the numerators and write the outcome over the shared denominator.The sum of the following rational expression is supplied to us, and we are to discover it:3x / x +9 + x (x -4)
3x / x +9 = 3x (x -4)/(x + 9)(x -4)
x / x - 4 = x(x +9)/(x - 4 )(x + 9)
3x (x - 4)/(x + 9)(x - 4) + x(x + 9)/(x - 4 )(x + 9)
3x (x -4 ) + x (x - 9) / (x + 9)(x - 4)
4x² - 3x / (x + 9 ) (x - 4).
The Complete Question is Rational Expression.
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Answer:
The sum of the rational expressions is 4x² - 10x / (x + 2 ) (x - 4)
What are rational expressions?
A rational expression is defined by the ratio of two polynomials.
We simply add or subtract the numerators and write the result over the shared denominator when adding or subtracting two rational expressions with the same denominator.
According to question:
Solving 3x/x + 2 + x/(x -4)
The sum of the following rational expression is supplied to us, and we are to discover it:
⇒ 3x / x +2 = 3x (x -4)/(x + 2)(x -4)
⇒ x / (x - 4)= x(x +2)/(x - 4 )(x + 2)
3x (x - 4)/(x + 2)(x - 4) + x(x + 2)/(x - 4 )(x + 2)
(3x (x -4 ) + x (x + 2)) / (x + 2)(x - 4)
4x² - 10x / (x + 2 ) (x - 4).
hence, the sum of the rational expressions is 4x² - 10x / (x + 2 ) (x - 4).
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The Complete Question is
what is the sum of the rational expressions below?
3x/x + 2 + x/(x -4)
7. In 2004, a sample of a radioactive substance had a mass of 300 milligrams. Since
then, the sample has decayed by 4.6% each year. Let t be the number of years since
2004. Let A(t) be the mass of the substance in milligrams. Write an exponential
function modeling this relationship.
Answers
Answer:
Below
Step-by-step explanation:
.046 is lost each year meaning (1 - .046) remains
A(t) = 300 ( 1 - .046)^t will show milligrams remaining after 't' years (where t is the years since 2004)
The equation f(t) = 24,500 x (0.88)t represents the value of a car, in dollars, years after it was purchased.
What do the numbers 24,500 and 0.88 mean?
What does represent?
Sketch a graph that represents the function and shows and .
Answers
the function should be represented as f(t) = 24,500( 0.88[tex])^{t}[/tex]
What is an Equations?
Equations are mathematical statements with two algebraic expressions on either side of an equals (=) sign. It illustrates the equality between the expressions written on the left and right sides. To determine the value of a variable representing an unknown quantity, equations can be solved. A statement is not an equation if there is no "equal to" symbol in it. It will be regarded as an expression.
Given, f(t) = 24,500 x (0.88)t
Assuming that the value of the car only increases by 88% per year compared to the previous year, the function rule needs to have "t" as the exponent, thus it should be f(t) = 24,500( 0.88[tex])^{t}[/tex]
Hence, the function should be represented as f(t) = 24,500( 0.88[tex])^{t}[/tex]
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a professor gave his students two exams.40% of the students passed both exams. 80% of the students passed the second exam.how many students (in percent) who passed the second exam also passed the first exam ?
Answers
The 50% of students who passed the second exam also passed the first exam.
The question is about Conditional Probability. Conditional probability is defined as the measure of the probability of event A given that event B has already occurred. It is denoted by P(A | B). Also, the formula for finding the conditional probability is given below:
P(A | B) = P(A ∩ B)/P(B) ....(1)
In the given question, We have the following information:
A = Students who passed both exams = 40% = 0.4
B = Students who passed only the second = 80% = 0.8
Now, Let
Probability of Students who passed the second exam and first exam = P (A | B) =?
We can find P(A | B) by putting the values of A and B in equation (1)
By putting values we get:
P (A | B) = [tex]=\frac{40\%}{80\%}[/tex] = [tex]\frac{0.4}{0.8}[/tex]
P (A| B) = 0.5 = 50%
So there are half or 50% of the students passed the second exam and also passed the first exam.
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What is an equation of the line that passes through the point ( − 2 , − 6 ) and is parallel to the line x + 2 y = 8 ?
Answers
The line parallel to the line x + 2y = 8 is y = -(1/2)x - 7 Or (1/2)x + 7 = - 7.
What is slope?The slope is the rate of change of the y-axis with respect to the x-axis.
The equation of a line in slope-intercept form is y = mx + b, where
slope = m and y-intercept = b.
We know the greater the absolute value of a slope is the more steeper is it's graph or rate of change is large.
The given line is x + 2y = 8 ⇒ 2y = - x + 8 ⇒ y = -(1/2)x + 8.
We know line parallel to each other have the same slope and it passing through (-2, - 6).
∴ - 6 = -(1/2)(-2) + b.
- 6 = 1 + b.
b = - 7.
So, The required line is y = -(1/2)x - 7.
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Write a polynomial function that meets the stated condition.
The zeros are -2/3 and , and the constant term of the polynomial is -10.
Answers
The polynomial that has a factor (3x + 2) and the constant term negative 10 will be p(x) = 3x - 8.
How to get polynomials with zeroes?Let a, b, c, and d are the zeroes of the polynomial.
Then the polynomial is given as,
⇒ (x - a)(x - b)(x - c)(x - d)
The degree of the polynomial will be greater than or equal to the number of zeroes.
The zeros are -2/3. Then the factor of the polynomial is given as,
x = - 2/3
3x = - 2
3x + 2 = 0
The polynomial that has a factor (3x + 2) and the constant term negative 10 will be given as,
p(x) = 3x + 2 - 10
p(x) = 3x - 8
The polynomial that has a factor (3x + 2) and the constant term negative 10 will be p(x) = 3x - 8.
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Help with question 14
Answers
Answer:
16
Step-by-step explanation:
4 / 2
2 / 2
1
4 = 2²
16/2
8/2
4/2
2/2
1
16 = 2^4
lowest common denominator = 2^4 = 16
Which of the following is a equation of x-axis 1)y-0. 2)x-0. 3)x-0. 4)y-0
Answers
Answer:
none of the listed options
Step-by-step explanation:
the equation for x axis is y=0
72 = 4s
S=
What does s =?
Answers
Answer:
72 = -4s
72 / (-4) = (-4s) / (-4)
-18 = s
A line passes through the points (4, - 3) and (6, - 1) The equation of the line in slope -intercept form is y = mx + b . What is the value of b?
Answers
Answer:
-7
Step-by-step explanation:
First find the slope (m)
m = (-1-(-3) / (6-4) = 2/2 = 1
Now find b, the y-intercept, by plugging either point into the equation.
y = mx + b
-3 = 1(4) + b
b = -7
2) Find the length of the missing side
Area = 234cm²
X
15cm
22cm
12cm
Answers
Answer:
1. using the formula (aX2/h)-22
17
Step-by-step explanation:
Take area multiply by 2
234x2=468
Divide answer by height which is 12 you get 39
39subtract 22 you get your answer as 17
Consider the differential equation: dy/dx=ey(3x2-6x)
a) Sketch a slope field for the given equation and include six points on the graph.
b) FInd y=f(x), the particular solution to the differential equation that passes through (1,0).
c) Write an equation for the tangent line to the graph of f at the point (1,0). Use the tangent line to approximate f(1,2).
Answers
F(x)= -ln(-x3+3x-1) is a particular solution to the differential equation that passes through (1, 0). An equation for the tangent line to the graph of f at the point (1,0) = -3.
b.[tex]\frac{dy}{e^y} = (3x^2-6x)dx\\[/tex]
∫[tex]e^{-y} dy =[/tex] ∫[tex](3x^2-6x)dx[/tex]
[tex]-1e^{-y} = x^3-3x^2+C\\e^{-y} = -x^3+3x^2+C_{2}\\ -y= ln(-x^3+3x^2+C_{2}) \\y=-ln(-x^3+3x^2+C_{2}[/tex]
Given (1,0)
[tex]0= -ln (-1+3+C)\\0=ln_{c} (2+C)\\e^{0} = 2+C\\-1=C\\so f(x)= -ln(-x^3+3x^2-1)\\[/tex]
f(1.2)=-.465 as the actual value.
c. tangent line slope at (1,0).[tex]= e^0 (3(1)^2-6(1))\\[/tex]
[tex]=-3[/tex]
Line equation: y= 3(x-1) or y= 3x + 3
with f(1,2)=-3(1.2)+3 =-.6
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3. 128 kg x 10 hr 1 hr
Answers
Answer: 1280 Kg
Step-by-step explanation:
The weight of the object given = 128 Kg
Time 1 = 10 hr
Time 2 = 1 hr
Cancel the hours,
128×10 = 1280 Kg
Can the sides 30, 40, 50 be a right triangle?
Answers
Answer:
yes
Step-by-step explanation:
following the rule of the Pythagorean triple the answer is yes
Actually a 30 , 40 , 50 triangle is just a scaled up 3 , 4 , 5 triangle, which is a well known right angled triangle
