Answer: The acceleration of the bus can be calculated using the formula:
a = (v2 - v1) / t
where:
a = acceleration
v2 = final velocity = 306 m/s
v1 = initial velocity = 126 m/s
t = time = 3 seconds
Substituting the given values into the formula, we get:
a = (306 m/s - 126 m/s) / 3 s
a = 180 m/s / 3 s
a = 60 m/s^2
Therefore, the acceleration of the bus is 60 m/s^2.
Step-by-step explanation:
At an ice cream shop, the cost of 4 milkshakes and 2 ice cream sundaes is $23.50. The cost of 8 milkshakes and 6 ice cream sundaes is $56.50.
Order the steps below for solving this system of linear equations using the elimination method.
Write the correct number, 1 for first through 4 for last, in front of each step listed.
Choices: Solve for y, Substitute the value for y into one of the equations to determine the value of x, Subtract from the other equation, and Multiply the equation 4x + 2y = 23.50 by 2.
Step 1:
Step 2:
Step 3:
Step 4:
x = 3.375 and y = 5 provide the system of equations' answer.
How Do You Solve an Equation System?The process of figuring out the unknown variables while keeping the equations balanced on both sides is known as the system of equations method. We solve an equation system by identifying the value of the variable that makes the condition of all the provided equations true. There are numerous methods for solving a system of equations.
Multiply the equation 4x+2y=23.50 by 2.
From the other equation, subtract.
Calculate y using a solution.
To find the value of x, substitute the value for y into one of the equations.
To eliminate one variable (either x or y) while utilising the elimination method, the equations are added or subtracted.
To start, we can multiply the first equation by 2 to get rid of the 2y term:
8x + 4y = 47
Next, we can subtract the second equation from this equation to eliminate the 8x term:
2y = 10
y = 5
Now that we have solved for y, we can substitute this value into one of the original equations (let's use the first one) to solve for x:
4x + 2(5) = 23.50
4x + 10 = 23.50
4x = 13.50
x = 3.375
To know more about equations visit:-
https://brainly.com/question/12895249
#SPJ1
It takes 3 people 4 hours to paint a wall. Assume that all people paint at the same rate. B) How long would it take 5 people to paint the same wall? Give your answer in hours and minutes
It would take 5 people to paint the same wall is 1 hour and 20 minutes or 1:20.
It is clear that workers twice as fast as people when painting the same surface. This means that John will always draw twice as much area as people at any given time if they are working at the same time. So if they plan well and finish painting the room at the same time, John will paint twice as much area as people.
There is only one possibility:
3 people = 4 hours
Divide by 3.
1 person = 4/3 or 1 1/3 hours
There are 60 minutes in 1 hour. Multiply 1/3 by 60.
(1/3)× 60 = 60/3 = 20
1/3 of an hour is 20 minutes.
It would take 1 person 1 hour and 20 minutes to paint the wall
Learn more about Minutes:
https://brainly.com/question/15600126
#SPJ4
What is sinK? Triangle L M K. Angle L is 90 degrees. Hypotenuse K M is 13, adjacent K L is 5, opposite L M is 12. A. StartFraction 12 Over 13 EndFraction c. StartFraction 5 Over 13 EndFraction b. StartFraction 13 Over 12 EndFraction d. StartFraction 5 Over 12 EndFraction
According to the trigonometric functions, the answer is A. StartFraction 12 Over 13 EndFraction.
What are trigonometric functions?
Trigonometric functions are mathematical functions that relate the angles of a right triangle to the ratios of its sides. There are six primary trigonometric functions:
Sine (sin): the ratio of the opposite side to the hypotenuse of a right triangle.
Cosine (cos): the ratio of the adjacent side to the hypotenuse of a right triangle.
Tangent (tan): the ratio of the opposite side to the adjacent side of a right triangle.
Cosecant (csc): the reciprocal of the sine function, i.e. the ratio of the hypotenuse to the opposite side of a right triangle.
Secant (sec): the reciprocal of the cosine function, i.e. the ratio of the hypotenuse to the adjacent side of a right triangle.
Cotangent (cot): the reciprocal of the tangent function, i.e. the ratio of the adjacent side to the opposite side of a right triangle.
To find sin(K), we need to use the definition of sine which is the opposite side over the hypotenuse:
sin(K) = opposite / hypotenuse
In this case, the opposite side is LM and the hypotenuse is KM. We are given that KM = 13 and LM = 12, so we can plug these values into the formula:
sin(K) = 12/13
Therefore, the answer is A. StartFraction 12 Over 13 EndFraction.
To know more about trigonometric functions visit:
brainly.com/question/14746686
#SPJ1
The distribution of the ages of of all IRSC students is known to be normally distributed with a mean of 20.9
years and a standard deviation of 5.9 years. Use this information to determine the following probabilities.
Round solutions to four decimal places, if necessary.
The probability that a random sample of 55 students has a mean age of less than 19.2 age years is 0.3866 and the probability that a random sample of 55 students has a mean age between 18.8 and 23 years is 0.27808.
What is the probability that a random sample has a mean age of less than 19.2a. To find P(x < 19.2), we need to find the area under the normal distribution curve to the left of x = 19.2. We can use the formula for z-score to standardize the value of x:
z = (x - μ) / δ = (19.2 - 20.9) / 5.9 = -0.2881
Looking up the area to the left of z = -0.2881 in a standard normal distribution table or using a calculator, we find that the probability is approximately 0.3869. So P(x < 19.2) is 0.3866.
b. To find P(18.8 < x < 23.0), we need to find the area under the normal distribution curve between x = 18.8 and x = 23.0. Again, we can standardize the values of x and use a standard normal distribution table or calculator:
z1 = (18.8 - 20.9) / 5.9 = -0.3559
z2 = (23.0 - 20.9) / 5.9 = 0.3559
Looking up the area between z1 = -0.3559 and z2 = 0.3559 in a standard normal distribution table or using a calculator, we find that the probability is approximately0.27808. So P(18.8 < x < 23.0) is 0.27808.
Learn more on probability here;
https://brainly.com/question/23286309
#SPJ1
Find the jacobian of the transformation. X = 6v + 6w2, y = 4w + 4u2, z = 9u + 9v2
To get the transformation's Jacobian, we must first compute the partial derivatives of each new variable with respect to each old variable: x/u = 0, x/v = 6 + 0 = 6, and x/w = 0 + 12w = 12w.
∂y/∂u = 8u ∂y/∂v = 0 ∂y/∂w = 8w + 0 = 8w z/u = 9 plus 0 = 9 z/v = 0 plus 18v = 18v z/w = 0 As a result, the transformation's Jacobian matrix is: [(x,y,z)/(u,v,w)] = J = \s[ 0 6 12w ] [ 8 0 8w ] [ 9 18v 0 ] A transformation's Jacobian is a matrix of partial derivatives that illustrates how changing the old variables impacts changing the new variables. We have three new variables x, y, and z in the provided transformation, which are functions of three old variables u, v, and w. To get the transformation's Jacobian, we must compute the partial derivatives of x, y, and z with respect to u, v, and w. We discover that x's partial derivative with respect to u is zero, x's partial derivative with respect to v is six, and x's partial derivative with respect to w is twelve. Likewise, y's partial derivative with regard to u.
learn more about transformation here:.
https://brainly.com/question/11709244
#SPJ4
\Graph the following system of equations.
y = 3x + 9
6x + 2y = 6
What is the solution to the system?
There is no solution.
There is one unique solution (−1, 6).
There is one unique solution (0, 3).
There are infinitely many solutions. (not this one already checked)
The solution to the system of equations. is (x, y) = (-1, 6).
What is a System of Equations?Simplifying this equation, we get:
6x + 6x + 18 = 6
12x + 18 = 6
Subtracting 18 from both sides:
12x = -12
Dividing both sides by 12:
x = -1
Now that we know x = -1, we can substitute this value into either equation to find y. We'll use the first equation:
y = 3x + 9
y = 3(-1) + 9
y = 6
Therefore, the solution to the system is (x, y) = (-1, 6).
Learn mοre abοut Equations, by the fοllοwing link.
https://brainly.com/question/12526075
#SPJ1
To promote his new business, Claudio made 300 tamales to give to pedestrians. The expression above describes the number of tamales remaining after passing out samples to p pedestrians. If Claudio passed out samples to 160 pedestrians, how many tamales would remain?
The answer is 140 tamales would remain.
What is an expression?An expression is a combination of numbers, variables, and mathematical operations, such as addition, subtraction, multiplication, and division, among others. It is a mathematical phrase that represents a value or a set of values when evaluated.
We are given that Claudio made 300 tamales to give to pedestrians. Let the number of tamales Claudio passed out to pedestrians be represented by p.
If we assume that Claudio passed out p tamales, then the number of tamales remaining would be:
300 - p
If Claudio passed out samples to 160 pedestrians, then the number of tamales remaining would be:
300 - 160 = 140
Therefore, 140 tamales would remain.
To know more about expression, visit:
https://brainly.com/question/1859113
#SPJ1
Evaluate the expression when m = -2
m^2 + 6m +9
2x/5 - 2 = 5 (find value of x)
find W (hypotenuse) if the angle is 15 degrees and the opposite side has a length of 7 cm
[tex]\sin(15^o )=\cfrac{\stackrel{opposite}{7}}{\underset{hypotenuse}{h}}\implies h=\cfrac{7}{\sin(15^o )}\implies h\approx 27.05[/tex]
Make sure your calculator is in Degree mode.
Answer: W ≈ 16.6
Step-by-step explanation:
The Pythagorean Theorem equation is [tex]a^{2}[/tex] + [tex]b^{2}[/tex] =[tex]c^{2}[/tex]
First do [tex]15^{2} +7^{2} =w^{2}[/tex]
Which equals [tex]274=w^{2}[/tex]
Then do[tex]\sqrt{274} =w[/tex]
so w ≈ 16.6
Write the equation of a circle with center at ( 3, -5 ), and a radius of 3.
A. (x - 3)² + (y + 5)² =9
B. 3 (x - 3)² + (y + 5)² =9
C. (x + 3)² + (y - 5)² =9
D. (x + 3)² + (y - 5)² =3
Answer:
The equation of a circle with center (h, k) and radius r is given by:
(x - h)² + (y - k)² = r²
So, substituting the values given in the question, we get:
(x - 3)² + (y + 5)² = 3²
Simplifying, we get:
(x - 3)² + (y + 5)² = 9
Therefore, the correct option is A) (x - 3)² + (y + 5)² = 9.
Step-by-step explanation:
At Simba Travel Agency, the price of a climbing trip to Mount Kilimanjaro includes an initial fee plus a constant fee per meter
The initial fee per meter is $110.
Although the fundamentals of speed, time, and distance stay the same, the kind of problems posed in exams may vary.
Most of the time, applicants will be given 1-2 word problems based on Speed, Time, and Distance, but they should also be prepared for questions on data sufficiency and data interpretation based on the TDS (Time, Distance, and Speed) theme.
At Simba Travel Agency, the price of a climbing trip to Mount Kilimanjaro includes an initial fee plus a constant fee per meter.
F(d) models the fee (in dollars) for climbing d meters.
F(d)=110+0.12d
To find the initial amount, substitute d=0 int the above function, and we get
F(0)=110+0.12(0)=110
Hence, the initial fee is $110.
The complete question is-
At Simba Travel Agency, the price of a climbing trip to Mount Kilimanjaro includes an initial fee plus a constant fee per meter.F(d)models the fee (in dollars) for climbing d meters. F(d)=110+0.12d. What is the initial fee?
learn more about initial condition,
https://brainly.com/question/2005475
#SPJ4
The histograms display the frequency of temperatures in two different locations in a 30-day period.
A graph with the x-axis labeled Temperature in Degrees, with intervals 60 to 69, 70 to 79, 80 to 89, 90 to 99, 100 to 109, 110 to 119. The y-axis is labeled Frequency and begins at 0 with tick marks every one unit up to 14. A shaded bar stops at 10 above 60 to 69, at 9 above 70 to 79, at 5 above 80 to 89, at 4 above 90 to 99, and at 2 above 100 to 109. There is no shaded bar above 110 to 119. The graph is titled Temps in Sunny Town.
A graph with the x-axis labeled Temperature in Degrees, with intervals 60 to 69, 70 to 79, 80 to 89, 90 to 99, 100 to 109, 110 to 119. The y-axis is labeled Frequency and begins at 0 with tick marks every one unit up to 16. A shaded bar stops at 2 above 60 to 69, at 4 above 70 to 79, at 12 above 80 to 89, at 6 above 90 to 99, at 4 above 100 to 109, and at 2 above 110 to 119. The graph is titled Temps in Desert Landing.
When comparing the data, which measure of variability should be used for both sets of data to determine the location with the most consistent temperature?
IQR, because Sunny Town is skewed
IQR, because Desert Landing is symmetric
Range, because Sunny Town is skewed
Range, because Desert Landing is symmetric
A. IQR or B. IQR is the correct response since Sunny Town is symmetrical or Sunny Town is asymmetrical.
How do distributions work?The pattern of data distribution across various values or intervals is referred to as a distribution. The form, centre, and dispersion of a set of data can be described and examined in this manner.
We need to measure the fluctuation of the temperature data in both locations in order to decide which place has the most stable temperature. The interquartile range (IQR), which quantifies the spread of the middle 50% of the data, is the ideal measure of variability for this application.
As a result, depending on how the distributions are shaped, the answer is either A. IQR because Sunny Town is symmetric or B. IQR because Sunny Town is skewed. The IQR would be a suitable tool to gauge the data's spread if Sunny Town's temperature data were symmetric. The IQR would also be useful to measure the spread of the data if Sunny Town's temperature data were skewed. Therefore, the range would not be a suitable indicator of variability if the temperature data from either location were not skewed.
To know more about distributions, visit:
brainly.com/question/14697580
#SPJ1
Please help! What do I graph?
Answer:
look at image
Step-by-step explanation:
A number, k, is 15.29 when truncated to
2 d.p.
Write an inequality to show the lower and
upper bounds of k.
the error interval will be [15.29, 15.3).
What is error?
Error is the difference between an actual value and an estimate, or approximate, representation of that value in applied mathematics. The discrepancy between the population's average and the average of a sample taken from that population is a frequent example in statistics. The discrepancy between an irrational number's true value and the values of rational expressions like 22/7, 355/113, 3.14, or 3.14159 serves as an example of round-off error in numerical analysis. A truncation error happens when an infinite series is ignored for all but a small number of terms. For instance, the sum of the infinite series can be used to express the exponential function ex.
Find the error interval of 15.29:
[15.29, 15.3)
Hence the error interval will be [15.29, 15.3).
Learn more about error, by the following link
https://brainly.com/question/11472659
#SPJ1
The value of the of your quarters incense is a function of and the number of quarters. You have finally output when the input is 10
The value of the of your quarters incense is a function of and the number of quarters, then the output when input is 10 is 250.
Quarters:
In mathematical terms, quartering is the division of a whole into 4 equal parts, where 1 is the part referred to and 4 is the number of parts the whole is divided into.
Let the quarter be 25 cents then value(v) of quarter (cents) is functions of n then equation,
v = 25n
Putting input (n =10)
V = 25× 10
= 250
The independent value is: n
The dependent value is : v
The equation is: v = 25n
And, the output when input is 10 is 250.
Learn more about Quarter:
https://brainly.com/question/391885
#SPJ4
Find the measure of each bolded arc. Round to the nearest hundredth.
The length of the shaded arc is 68.71 metres squared.
How to find the length of an arc?The arc of a circle is defined as the part or segment of the circumference of a circle. Therefore, the length of the bolded arc can be found as follows:
length of an arc = ∅ / 360 × 2πr
where
r = radius∅ = central angleTherefore,
r = 26 / 2 = 13 m
∅ = 360 - 57 = 303 degrees
length of an arc = 303 / 360 × 2 × 3.14 × 13
length of an arc = 24736.92 / 360
length of an arc = 68.7136666667
length of an arc = 68.71 metres squared
learn more on arc here: https://brainly.com/question/20521627
#SPJ1
Solve the equation.
5(y+2/5)=−13
y = ?
Answer:
-3
Step-by-step explanation:
5(y+2/5)=-13
5*y+5*2/5=-3
5y+2=-13
5y=-13-2
5y=-15
5y/5=-15/5
y=-3
Answer:
y = -3
Step-by-step explanation:
Now we have to,
→ Find the required value of y.
The equation is,
→ 5(y + (2/5)) = -13
Then the value of y will be,
→ 5(y + (2/5)) = -13
→ 5(y) + 5(2/5) = -13
→ 5y + (10/5) = -13
→ 5y + 2 = -13
→ 5y = -13 - 2
→ 5y = -15
→ y = (-15)/5
→ [ y = -3 ]
Hence, the value of y is -3.
Mr. Denson has a square shaped patio enclosed with a fence. The entire length of the fence around the perimeter of the patio is 72 meters. What is the area of his square-shaped patio?
The area of Mr. Denson's square-shaped patio that enclosed the fence is 324 m².
What is the area?The area is represented as the number of unit squares that cover the surface of an enclosed figure or object, measured in square units like cm² and m².
The area is the product of the two sides (length and breadth).
The perimeter of a square = 4a, where a is one length of the square.
If 4a = 72 meters, a = 18 meters (72/4).
The area of the square-shaped patio = 324 m² (18 x 18).
Thus, Mr. Denson should know that his square-shaped patio has an area of 324 m².
Learn more about the area at brainly.com/question/25292087.
#SPJ1
Suppose that X is an event, and that P(X)=0.66 . What is P( X ˉ ) (i.e. the probability that X will not occur)? Answer = You have attempted this problem 0 times. You have unlimited attempts remaining.
The probability of X not occurring is 0.34.
What is Probability?
Probability is a branch of mathematics concerned with measuring the likelihood of events. It involves studying random phenomena, such as coin tosses, rolling dice, or weather patterns, and assigning numerical values to the likelihood of different outcomes .The formal definition of probability is based on the concept of equally likely outcomes, where the probability of an event is the ratio of the number of favorable outcomes to the total number of outcomes
If P(X) = 0.66, then the probability of not X occurring (i.e., X complement or X bar) is:
P(X bar) = 1 - P(X)
P(X bar) = 1 - 0.66
P(X bar) = 0.34
Therefore, the probability of X not occurring is 0.34.
To learn more about Probability, visit the link:
https://brainly.com/question/24756209
#SPJ1
11
10
9
8765
4
321
y
3
2
1
S
6 7 8 9 10 11
O A. y = x
B. y = x
C. y = 6x
OD. y = 2x
The proportional relationship defined by the table is given as follows:
y = 2x.
What is a proportional relationship?A proportional relationship is defined according to the equation presented as follows:
y = kx.
In which k is the constant of proportionality, representing the increase in the output variable y when the constant variable x is increased by one.
From the table, when the input variable x is increased by one, the output variable y is increased by 2, hence the constant of proportionality is given as follows:
k = 2.
Meaning that the equation is given as follows:
y = 2x.
Missing InformationThe graph of the relation is given by the image presented at the end of the answer.
More can be learned about proportional relationships at https://brainly.com/question/7723640
#SPJ1
A 2-pound bag of corn costs $3.20. What is the price per ounce?
Answer:
$0.10
Step-by-step explanation:
2 pound = 32 ounces
32 ounces = $3.20
What is the price per ounce?
3.20 / 32 = $0.10
So, the price per ounce is $0.10
13731 arks
a) Write the missing numbers.
10% of 140 =
5% of 140 =
1% of 140 =
b) Work out 16% of 140
You can use part (a) to help you.
000 0
At a football game, a vender sold a combined total of 137 sodas and hot dogs. The number of sodas sold was 49 more than the number of hot dogs sold. Find the number of sodas sold and the number of hot dogs sold. Number of sodas sold: Number of hot dogs sold:
Answer:
From the problem, we know that:
s + h = 137 (the total number of sodas and hot dogs sold is 137)
s = h + 49 (the number of sodas sold is 49 more than the number of hot dogs sold)
Now we can substitute the second equation into the first equation:
(h + 49) + h = 137
Simplifying this equation:
2h + 49 = 137
Subtracting 49 from both sides:
2h = 88
Dividing both sides by 2:
h = 44
Now we know that 44 hot dogs were sold. We can use the second equation to find the number of sodas sold:
s = h + 49
s = 44 + 49
s = 93
Therefore, 93 sodas were sold.
Number of sodas sold: 93
Number of hot dogs sold: 44
Step-by-step explanation:
Answer: Let's use variables to represent the number of sodas and hot dogs sold.
Let x be the number of hot dogs sold.
According to the problem, the number of sodas sold was 49 more than the number of hot dogs sold, so the number of sodas sold is x + 49.
The problem also tells us that the combined total of sodas and hot dogs sold was 137. So we can set up an equation:
x + (x + 49) = 137
Simplifying the left side:
2x + 49 = 137
Subtracting 49 from both sides:
2x = 88
Dividing both sides by 2:
x = 44
So the number of hot dogs sold was 44.
To find the number of sodas sold, we can use the expression we set up earlier:
x + 49
Substituting in our value for x:
44 + 49 = 93
So the number of sodas sold was 93.
Answer: Number of sodas sold: 93, Number of hot dogs sold: 44.
Brainliest Appreciated
The triangle show below may not be congruent 
Answer:
Step-by-step explanation:
This is another question. It's not related to this question. Sorry.What is the GCF of the terms in the polynomial? 18d4e2−45d2+36d
Answer: 18d
Step-by-step explanation:
To find the greatest common factor (GCF) of the terms in the polynomial 18d^4e^2 − 45d^2 + 36d, we need to factor each term into its prime factors and then identify the common factors with the highest exponent for each variable.
The prime factors of each term are:
18d^4e^2 = 2 x 3^2 x d^4 x e^2
45d^2 = 3^2 x 5 x d^2
36d = 2^2 x 3^2 x d
To find the common factors, we need to look for factors that appear in all terms. The common factors with the highest exponent for each variable are:
2^1, 3^2, and d^1.
Therefore, the GCF of the terms in the polynomial is:
2 x 3^2 x d = 18d
Hence, the GCF of the terms in the polynomial 18d^4e^2 − 45d^2 + 36d is 18d.
You are a real estate broker for Aurora Realty. One of your clients, Erica Heston, has agreed to purchase one of the homes your office has listed for sale for a negotiated price of $235,000. The down payment is 20%, and the balance will be financed with a 15-year fixed-rate mortgage at 8.75% and discount points. The annual property tax is $5,475, and the hazard insurance premium is $2,110. When Erica signed the original contract, she put down a deposit of $5,000, which will be credited to her down payment. In addition, at the time of closing, Erica must pay the following expenses:
Appraisal lee - $215
Credit report - $65
Roof inspection - $50
Mortgage insurance premium - 1/2% of amount financed
Title search - $125
Altorney's fees - $680
Escrow fee - $210
Prepaid interest - $630
The total monthly PITI of the mortgage loan, given the principal and the tax, would be $ 2, 512.08.
How to find the monthly PITI?To find the monthly PITI, you first need to find the principal and interest portion by the formula :
= Amount financed / 1, 000 x factor for 8.75%, 15 years
= 188, 000 / 1, 000 x 10
= $ 1, 880
The monthly tax and insurance portion would be:
= ( Estimated property tax + Annual insurance ) / 12
= ( 5, 475 + 2, 110 ) / 12
= $ 632.08
The monthly PITI on the mortgage loan is therefore :
= 1, 880 + 632.08
= $ 2, 512.08
Find out more on PITI at https://brainly.com/question/30914746
#SPJ1
The question is:
What is the total monthly PITI of the mortgage loan?
Wills mobile contract gives him 700 minutes of calls each month. Will made 113 minutes of calls during the first week how much call time does he have left during this month? give your answer in hours and minutes. How much total call time does wills phone have in the first 7 months. Give your answer in days hours and minutes
Will has 587 mins (9h 47m) of call time left for the month and used 791 mins (13h 11m) in the first 7 months. He has 4,909 mins (81h 49m) left for the remaining 5 months. His phone has 5,700 mins (95d 4h 20m) of call time in a year.
Will has 587 minutes of call time left for the rest of the month, which is 9 hours and 47 minutes (587/60). In the first 7 months, Will has used 791 minutes (113 minutes per month for 7 months), which is 13 hours and 11 minutes. He has 4,909 minutes (7 months x 700 minutes per month - 791 minutes used) or 81 hours and 49 minutes left for the remaining 5 months. In total, Will's phone has 5,700 minutes (12 months x 700 minutes per month) or 95 days, 4 hours and 20 minutes of call time in a year.
Learn more about multiplication here: brainly.com/question/5992872
#SPJ4
The circumference of a circle is 6π ft. What is the area, in square feet? Express your answer in terms of
�
π.
Answer:
9π
Step-by-step explanation:
circumference=6ft
radius=3ft
radius squared=9ft
area=9ft ×π
area=9π
2x + 3y = 8
-4x + 6y = 8
X-Z = -4
Nilai x+y+z adalah
Answer:
0
Step-by-step explanation:
Untuk menyelesaikan masalah ini, kita perlu menyelesaikan sistem persamaan linear dua variabel pertama dan sistem persamaan linear tiga variabel:
Sistem Persamaan Linear Dua Variabel:
2x + 3y = 8 ... (1)
-4x + 6y = 8 ... (2)
Untuk menyelesaikan sistem persamaan ini, kita dapat menggunakan metode eliminasi:
Langkah 1: Kalikan Persamaan (1) dengan 2 dan Persamaan (2) dengan 1. Kita memperoleh:
4x + 6y = 16 ... (3)
-4x + 6y = 8 ... (4)
Langkah 2: Tambahkan Persamaan (3) dan Persamaan (4). Kita memperoleh:
12y = 24
Langkah 3: Bagi kedua sisi dengan 12. Kita memperoleh:
y = 2
Langkah 4: Substitusikan y = 2 ke dalam Persamaan (1) atau (2). Kita memperoleh:
2x + 3(2) = 8
2x + 6 = 8
2x = 2
x = 1
Jadi, solusi dari sistem persamaan linear dua variabel adalah (x, y) = (1, 2).
Sistem Persamaan Linear Tiga Variabel:
x - z = -4 ... (5)
x + y + z = ?
2x + 3y = 8
Untuk menyelesaikan sistem persamaan ini, kita dapat menggunakan metode substitusi:
Langkah 1: Substitusikan x = 1 dan y = 2 dari sistem persamaan linear dua variabel ke dalam Persamaan (3). Kita memperoleh:
2(1) + 3(2) = 8
2 + 6 = 8
8 = 8
Langkah 2: Substitusikan x = 1 dari sistem persamaan linear dua variabel ke dalam Persamaan (5). Kita memperoleh:
1 - z = -4
z = 5
Langkah 3: Substitusikan x = 1 dan z = 5 ke dalam Persamaan (6). Kita memperoleh:
1 + y + 5 = ?
y = -6
Jadi, solusi dari sistem persamaan linear tiga variabel adalah (x, y, z) = (1, -6, 5).
Maka nilai x + y + z adalah:
x + y + z = 1 + (-6) + 5 = 0
Jadi, nilai x + y + z adalah 0