Find the solution to the system of equations.
x + 4y - 5z = -6
x + 4y - 4z = -1
x + 5y - 4z = 3
A. x = 3, y = 4, z = 5
B. x = 5, y = 3, Z = 6
C. x = 3, y = 13, z = -14
O D. x = 4, y = 5, z = 3
Answers
Answer:
A.
Step-by-step explanation:
first find value of x from eq.1 and 2
then value of y from equation 2 and 3
put these values in equation 1 to get value of x
Related Questions
Help Me Please...............(2)
Answers
m = -1.41
Answer:
-0.499
Step-by-step explanation:
Isnt that it? xD
or 1.41
4y-9=15 what does y equal
Answers
4y -9 + 9 = 15 + 9
4y = 24
Divide by 4
4y/4 = 24/4
Solution: y = 6
giving brainliest !! *easy*
Answers
ih4egjhbsDLJFB sFHBseiuhFB skefByefusj:FKBs:iuyeGFBsjk :efge8FUIsj
Answer:
v = 49 pied square cm squared x 4 cm
Step-by-step explanation:
PLEASE HELP MERCY!!????!?!
Answers
Hi! Can you plz answer this for me I am bad at math plz
Answers
Answer:
Step-by-step explanation:
Step-by-step explanation:
base = 21 / 8 mm
height = 10 mm
area = 1/2 × base × height
= 1/2 × 21/8 × 10
= 13 1/8
write two numbers that multiply to the value on top and add to the value on bottom
Answers
Answer:
4 and 10
Step-by-step explanation:
4 x 10 = 40
4 + 10 = 14
The Polygons are similar. Solve for x
10
9
6
12
Answers
Step-by-step explanation:
[tex] \frac{ - 2 + 7x}{32} = \frac{25}{20} [/tex]
[tex] \frac{ - 2 + 7x}{32} = \frac{5}{4} [/tex]
4(-2+7x) = 5(32)
-8 + 28x = 160
28x = 160+8
28x = 168
x = 168/28
= 42/7
= 6
Use the long division method to find the result when 6x3 – 22x2 + 19x - 8 is
divided by 3x-8. If there is a remainder, express the result in the form
q(x) + r(x)
——
b(x)
Answers
Answer:
5964672
Step-by-step explanation:
if this isn't the answer then I don't know what it is I'm not 100% sure
Find the ratio of 2 1/2 hours to 15 minutes?
Answers
1 hour = 60 minutes
⇒ 2 hours = 2 x 60 minutes
= 120 minutes
The ratio of 50 minutes to 2 hours is then:
50 : 120
⇒ 5 : 12
Matt cut a circle into 8 equal sections. He drew an angle that measures the same as the total measure of 5
of the sections in the circle. What is the measure of the angle Matt drew?
The total measure of the angle Matt drew is degrees
Answers
Answer:
135
Step-by-step explanation:
what are square roots?
Answers
Answer:
Step-by-step explanation:
Square roots are the values which when multiplied by themselves are the value in the radical.
2X2=4
So the square root of 4 is 2
3X3=9
So the square root of 9 is 3
...
The distance between the points(-7,4) and(-7,-5)
Answers
Answer:
Please find attached pdf
Step-by-step explanation:
What does x=
Help quickly, please!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
see in the picture, we can see that SPRQ is a parallelogram
=> 70 = 14x
⇔ x = 70/14
⇔ x = 5
Step-by-step explanation:
A mirror is the shape of an ellipse defined by y^2/7.29 + x^2/6.25 = 1 with units in feet. Which statement identifies the
orientation of the mirror and its greatest dimension?
Answers
Answer:
a (The mirror has a vertical orientation and is 5.4 ft tall.)
Step-by-step explanation:
a on edg 2021 ^u^
Answer: A. The mirror has a vertical orientation and is 5.4 ft tall.
Step-by-step explanation:
Since the y^2 value is being added first, and the value in its denominator is greater, we know that the ellipse has a vertical major axis.
Therefore, its orientation is vertical.
The square root of is 7.29, so 2.7 is the distance from the center to one of the ellipse's vertices. (You can research further into the equation for ellipses with vertical major axes to learn why that is.)
Multiply 2.7 * 2 = 5.4 to determine the full height of the mirror.
Yay! We figured out that "the mirror has a vertical orientation and is 5.4 ft tall".
Evaluate this expression for a = 3 and b = 4.
b 3(b+2) (a + 4) - —-—— + ————
b - 2 a
•A. 6
•B.9
•C. 11
•D.18
Answers
quantos algarismos esse número possui??
Quantas classes?? E quantas ordens??
Qual classe mais elevada?? E a ordem??
Qual e o algarismo da unidade de milhar??
Quantas unidades vale??
Que algarismo representa a 3 ordem??
Quantas unidades vale??
Me ajude me pra ontem
Answers
Answer:
no habla espanol
Step-by-step explanation:
Albert sold five house this month. The list below shows the prices of the houses sold. $65000,$65000,$98000,108000,225000. Which measure best describes the price of the houses sold. A) median of 98,000 B) mean of 112,000 C) range 130,000 D) mode 65,000
Answers
Answer:
Since I just sold my home, the mean was most important to me. It tells me what I would most likely get and where to place my opening bid.
Step-by-step explanation:
The median and the range has their uses. So does the range.
Albert himself has the most interest in the mean providing his commission is a constant one (usually 6% -- at least in Canada). His commission would be 5 times the average * 6%.
A buyer might have an entirely different view. I think the range would interest him the most. That tells him he has a variety of choices and his economics would determine what he will choose.
I'm sure that the real estate company would be most concerned with range as well. It would tell them where they should focus their advertising. They might want to focus on the mode because there are 2 choices there or the median which is quite a ways away.
He earns $25 per hour for training and $15 per hour for data entry support. Steven can work no more
than 40 hours a week. He wants to use linear programming techniques to optimize his income.
Part A
Construct a model to represent the amount of time Steven can spend on data entry and training. Be sure
to define your variables. Sketch a graph of your model.
Part B
While Steven would like to spend most of his time training, the number of hours spent training cannot
exceed twice the number of hours doing data entry support. Steven must spend at least 10 hours each
week on data support. Construct a model to show the constraints. Sketch a graph of your model.
Part C
Find the vertices of the feasible region. Show your work or explain how you found the coordinates.
Part D
What is the maximum possible amount of money Steven can earn in a week given the constraints? Round
to the nearest dollar. Validate your solution to assess the reasonableness of you
Part E
The number of hours Steven worked one week resulted in a gross income of $800. From this, a portion was
withheld for benefits, retirement, and taxes. The total amount withheld from Steven’s check was $264.
The amount withheld for taxes was twice the amount withheld for retirement, and the amount withheld
for benefits was $24 less than the sum of retirement and taxes. Construct a system of equations that can
be used to find the amount of benefits, retirement, and taxes. Be sure to define your variables.
Part F
Solve the system from Part E. Validate your solution to assess the reasonableness of your model.
Answers
Ans
Step-by-step explanation:
You bought a notebook for $2 and 6 packs of crayons. If
you spent a total of $26, how much was each pack of
crayons?
Answers
Answer:
$4
Step-by-step explanation:
26-2=24
24 divided by 6 =4
Answer:
$24
Step-by-step explanation:
26-2=24
1 notebook is $2 so if you subtract it from the total you should get your answer which is $24!
Hope this helped you buddy.
4. Mia ran 10 laps in 8 minutes. Shawna ran 4 laps in 3 minutes. Which person ran at a faster rate? * O Mia ran at a faster rate. Sawna ran at a faster rate. O They both ran at the same rate.
Answers
Answer:
Shawna ran at a faster rate.
Step-by-step explanation:
Because of Shawna ran for 10 minutes just like Mia, it would take her 7.5 mins while Mia took 8minutes to run 10 laps
Find an
expression which represents the sum of (8x - 7) and (10x + 3) in
simplest terms.
Answers
80x + 24x × 70x + 21 = 3.4 when approximated
5% of a number is 23
1% of a number is 4.6
work out 16% of the number
Answers
The number is 460. So 16% of that number would be 73.6
If angle 2 measures 75 degrees, how many degrees is angle 4?
Answers
A fruit bowl contains apples, oranges, and bananas. The radius of one of the oranges is 1.45 inches. What is the approximate volume of the orange? Use 3.14 for .
Answers
Answer:
12.76 in³
Step-by-step explanation:
The volume of a sphere formula is V = (4/3)πr³.
Here we use 3.14 for π and 1.45 in for r. We get:
V = (4/3)(3.14)(1.45 in)³ ≈ 12.76 in³
Triangle FGH is dilated by a scale factor of 5 to form triangle F'G'H'. Side F'G'
measures 15. What is the measure of side FG?
Answers
Answer:
The measure of side FG is 3.
Step-by-step explanation:
Dilation is a process in which the dimensions of a given shape or figure is either increased or decreased by a scale factor to produce its image.
From the given question,
scale factor = 5
measure of side F'G' = 15
Thus,
scale factor = [tex]\frac{measure of side F'G'}{measure of side FG}[/tex]
side F'G' = scale factor x side FG
⇒ 15 = 5 x side FG
So that,
side FG = [tex]\frac{15}{5}[/tex]
= 3
The measure of side FG is 3.
PLSS HELP IS DUE TODAY T-T!!
Answers
Answer:
9.35%
Step-by-step explanation:
Solve for u
10 − u = u − 10
Answers
Step-by-step explanation:
I hope this helps. Ans: u=10
The word and in probability implies that we use the ________ rule.
Answers
Answer:
Addition Rule
The word or in probability implies that we use the Addition Rule.
The word "and" in probability implies that we use the "Multiplication Rule".
The Multiplication Rule is used when calculating the probability of two or more independent events occurring simultaneously.
It states that the probability of two or more independent events occurring together is equal to the product of their individual probabilities.
In other words, if event A and event B are independent, then the probability of both events A and B happening is given by:
P(A and B) = P(A) x P(B)
Learn more about Probability here:
https://brainly.com/question/31828911
#SPJ6
15 cm w
11 cm h
16 cm l
Surface area
Answers
251
bc 15x16=240
240+11=251
TRAP is a trapezoid. If TR= 17 and PA= 23, then find the length of EF .
Answers
Answer:
20
Step-by-step explanation:
23 + 17 = 40
40 / 2 = 20
Hope that helps!
Answer:
20, because it would be (PA+TR)/2
Step-by-step explanation: