Solve.
x +y + 2z=3
2x – 2y – 3z = 2
3x - y - 2z=1
Enter your answer, in the form (x, y, z). in the boxes
Step-by-step explanation:
x=−y−2z+3
x=y+32z+1
x=13y+23z+13
I'll mark brainilest awnser
Answer:
-6
Step-by-step explanation:
let equation of the line be y = mx + c
sub (4, -3)
-3 = 1/2(4) + c
c = -5
sub (-2, y)
y = 1/2(-2) - 5
y = -6
Mona wants to buy carpet for a floor in her house. The floor is rectangular with a width of 5 m and a length of 8 m. Two shops sell carpet with the prices shown below. How much will Mona save by going to Carpet World ?
Answer:
Mona will save a total of $7 by going to Carpet World.
Step-by-step explanation:
First, we need to calculate the total area of the floor by multiplying the width by the length...
5m * 8m = 40m
Now we calculate the amount that it would cost to buy the carpet from each of the establishments. For the first establishment, we can buy 16[tex]m^{2}[/tex] and get the next 8[tex]m^{2}[/tex] half off and that would leave another 16[tex]m^{2}[/tex] at full price. The second establishment we have a 5% off (0.95 of official price) for every 8[tex]m^{2}[/tex], since out total area is 5 times this amount then our total will have a 5% off.
Establishment 1: (16[tex]m^{2}[/tex] * 2.20) + (8[tex]m^{2}[/tex] * 1.10) + (16[tex]m^{2}[/tex] * 2.20) = $79.20
Establishment 2: (40[tex]m^{2}[/tex] * 1.90) * 0.95 = $72.20
Difference: 79.20 - 72.20 = $7
Mona will save a total of $7 by going to Carpet World.
Answer:
£14.70
Saw it on hegarty maths
Write an equation for each of the four types of slopes.(in slope intercept form) 9th grade geometry HELP
Answer:
y=x+3
y=-2x+3
y=3
y=0/3x+2
Step-by-step explanation:
What is the difference between -4 and 6? negative 10, negative 2, 2, or 10
Answer:
-4-6=-10
Step-by-step explanation:
Hope this helps! If you have any questions comment below (^-^)
A line passes through the points (-6, 4) and (-2, 2). Which is the equation of the line?
y= -1/2 x + 1
y= 1/2 x +7
y= -2x - 8
y= 2x + 16
Answer:
28
Step-by-step explanation:
How are ROC (rate of change) and slope related AND different
Answer:
Rate of change and slope is the same since they are both terms of every rate, but rate of change can be said in any terms as in exponential and linear, etc. While slopes are only for linear equations.
Step-by-step explanation:
Hope this helps :)
Solve -6x - 7 = 17.
X=_
Answer:
x=-4
Step-by-step explanation:
-6x=17+7
-6x=24
x=-4
Answer:
x = -4
Step-by-step explanation:
Add 7 to each side of the equation (left and right of the equal sign) which should get you to -6x = 24. Then multipy both sides by -1 to make the -6x positive and turn the 24 negative. That should leave you with 6x = -24, then divide by 6 on each side and your answer should be x = -4
anyone know how to do this?
Brendon sells tires at the local auto parts store. He told a customer that the tire width for a new tire was 21.5 centimeters. Which of the following describes the tire width for the new tire? Help please thank you!!!
Answer:
215 mm
Step-by-step explanation:
1 cm = 10 mm
21.5 cm * (10 mm)/(1 cm) = 215 mm
Answer: 215 mm
Harriet needs to ship a small vase. The box she will use has a volume of 216 cubic inches. if the side lengths are all the same, what is the length of each side of the box?
Answer: 14.7 cubic inches
Cubed root of 216 is about 14.7
Step-by-step explanation:
Hope this helps.
HELP WILL MARK BRAINLIEST
Answer: 4√5
Step-by-step explanation:
Answer: 4/5
Step-by-step explanation:
If F(x)=4x-9 find f(-1)
Answer:
F(-1) = -13
Step-by-step explanation:
If F(-1) then that means x = -1
4 times -1 is -4 and -4 plus -9 is -13
five thusond ×65thousand
Answer:
the answer is 325,000,000
Step-by-step explanation:
What is the measure of angle B in the triangle?
this triangle is not drawn to scale.
Solve this equation 3/5 (x-10) = 18 - 4x - 1
Answer:
x=5
Step-by-step explanation:
Good luck
O Horizontal translation of 11 units
O Reflection across y-axis
O Horizontal translation of 4 units
O Reflection across x-axis
Answer:
The answer is B
Step-by-step explanation:
I got B because it just looks like its flipped over the y axis. Its also even. Im sorry if you didnt get that but im not the best explainer at these types of problems lol. But its actually b trust me
pls mark brainliest because i didnt waste your time lol
What is the minimum value for the function shown in the graph?
(pls help asap thank you :^)
It takes Michaels 3 hours to drive 180 miles. At that rate, how long does it take to drive 60 miles?
Answer:
if your destination is 180 miles away and you drive 60 mph how long does the trip take? So it takes 3 hrs.
Step-by-step explanation:
Blanca can run 1 kilometer in 7.2 minutes. At that pace, how many kilometers can Blanca run in 50.4 minutes?
Answer:
7 minutes
Step-by-step explanation:
1 kilometer / 7.2 minutes
x kilometers/ 50.4 minutes
cross-multiply
x*7.2 = 1*50.4
divide by 7.2 both sides
x= 50.4/7.2= 7 minutes
Can someone please help!! Idk what to do.
Answer:
3948 members
Step-by-step explanation:
SInce a is the initial amount, a = 2000. b represents growth factor, and the amount increases by 12% every year, so b = 1.12. Since you want to find the value in 6 years, x= 6. Therefore your equation is y = 2000 • 1.12 ^ 6. Plug it into your calculator and you get y = 3947.64, and since they are people you round up to 3948 members.
Un ascensor está en el segundo subsuelo, sube
seis pisos, luego baja cinco, vuelve a subir ocho
y finalmente baja trece. En qué piso se quedó
Answer:
You are going to be in the 1st floor/Vas a estar en el 1er piso!
Yo creo que
Step-by-step explanation:
PLEEAASESEEE HEELLPPPP
Answer:
9
Step-by-step explanation:
= x + 16° + x + 3° =5x - 8°[ Sum of two interior angles is equal to the exterior angle]
or, 2x + 19 = 5x - 8
or, 19 + 8 = 5x - 2x
or, 27 = 3x
or, x = 27/3
☆ x= 9
A retail outlet's sales for January were $45,000. In February, these sales decreased 10%; but from February to March, sales increased 10%.
What were the outlet's sales for the month of March?
a.$45,000
b.$40,500
c.$44,550
d.$49,500
Answer:
$44550 is your answer
Step-by-step explanation:
.
A football team loses an average of 3 yards per play. How many yards
have they lost after 4 plays? Write a number sentence to show your
answer.
The expression would be:
3x
x=number of plays
Insert 4:
3(4)
=12
They would 12 yards after 4 plays if losing 3 yards every play.
The amount of yards the football team loses after 4 plays is given by the equation A = 12 yards
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the amount of yards the football team loses after 4 plays be A
Now , the equation will be
Let the amount of yards the football team loses per play = 3 yards
So , the amount of yards the football team loses after 4 plays = 3 x amount of yards the football team loses per play
Substituting the values in the equation , we get
The amount of yards the football team loses after 4 plays A = 3 x 4
On simplifying the equation , we get
The amount of yards the football team loses after 4 plays A = 12 yards
Hence , the amount of yards is 12 yards
To learn more about equations click :
https://brainly.com/question/19297665
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A circular Park of radius 30m has a track of width 2.5m on its innet side.find the area of the track.
This is a pretty mathematical question, so I will answer it in pieces as I get the time to work it out. To find the time it takes to fall, you start with Newton's second law, ma=m[d2r/dt2]=-GMm/r2=dv/dt and integrate it once to get v=dr/dt=√[2GM(R-r)/(Rr)] where, for your question, R is the distance from the center of the earth to the point from which it was dropped, r is where it is at the time t(r), G is the universal gravitation constant, and M is the mass of the earth. (The mass m of the ship does not matter.) (You can more easily get v(r) from energy conservation.) Next integrate v(r)=dr/dt to get t(r)=-2.69x105{0.5tan-1((2x-1)/(2√[x(1-x)]-√[x(1-x)]-π/4} where x=r/R; this is not a simple integral to perform, but you can find good integrators on the web, for example Wolfram Alpha. Once you have gotten the indefinite integral you are not finished, you need to find the integration constant which will put the ship at rest at x=r/R=1; that is where the π/4 comes from. Putting in your numbers, I find t=4.22x105 s=117 hr=4.89 days. The figure shows the graph of t(x).
Step-by-step explanation:
mark upper one as brainliest
plssssss help just with B
Answer:
y=35x
Step-by-step explanation:
...................
I need points but Y=34x
a fence has a perimeter of 240 yards the length is 16 yards longer than the width
Help plz brainliest for first answer and best answer
According to the graph, how many chocolates are in 3 boxes?
A. 10
B. 12
C. 15
D. 16
Answer:
C.15
Step-by-step explanation:
one box has 5 chocolates so 3*5=15
Which of these graphs is the solution set for the equation y = -x?
Answer:
B!
Step-by-step explanation:
I took the test and this was correct :)