5x+y=-19 5x-4y=-24
Help pls
Answers
Answer:
x= 4 and y=1
Step-by-step explanation:
to solve this you could either use substitution or elimination. elimination would be best her because both 'x's have the same number. subtract the equations from eahh other and solve for y, then substitute the y and solve for x
The system of equations are solved and x = -4 and y = 1
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 equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
To solve the system of equations:
5x + y = -19 (Equation 1)
5x - 4y = -24 (Equation 2)
Let's use the elimination method in this case.
Step 1: Multiply Equation 1 by 4 and Equation 2 by 1 to eliminate y.
4(5x + y) = 4(-19)
5x - 4y = -24
20x + 4y = -76 (Equation 1 multiplied by 4)
5x - 4y = -24 (Equation 2 multiplied by 1)
Step 2: Add the equations together to eliminate y.
20x + 4y + 5x - 4y = -76 - 24
25x = -100
x = -100 / 25
x = -4
Step 3: Substitute the value of x into either Equation 1 or Equation 2 to solve for y.
5(-4) + y = -19 (Using Equation 1)
-20 + y = -19
y = -19 + 20
y = 1
Hence , the solution to the system of equations is x = -4 and y = 1
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Related Questions
What is the value of x?
Enter your answer in the box.
Answers
Answer:
46 degrees
Step-by-step explanation:
you know that if you add 134 and x it will equal a straight line or 180 degrees. So set it up as an addition problem.
134 + x =180 subt. 134 from both sides
x=180-134
x=46 degrees
Answer:
46
Step-by-step explanation:
I need help with these
Answers
BRAINIEST TO WHOEVER RIGHT “ identify the box and whisker plot that represents the data.” “Cat lengths (in inches) : 16, 18, 20, 25, 17, 22, 23, 21”
Answers
First we have to put he data set in ascending order:
16, 17, 18, 20, 21, 22, 23, 25
The median (middle number or average of 2 middle numbers) = 20.5 The center line of the box needs to be at 20.5
The middle of the first half of the data is 17.5, (average of 17 & 18) so the left side of the box needs to be at 17.5
The middle of the second half of the data is 22.5, (average of 22 & 23), so the right side of the box needs to be at 22.5.
The “whiskers” are your bottom & top numbers...representing the full range of data. They should be at 16 & 25.
I need help with this problem
Answers
Answer:
24
Step-by-step explanation:
5^2-3^2=?
25-9=16
sqrt 16 = 4
6×4=24
If the perimeter of a triangle is 31 ft and two of the side lengths are 15 ft and 10 ft, what is the length of the third side?
A.16ft
B.25ft
C.6ft
D.56ft
Answers
Answer:
C) 6 ft
Step-by-step explanation:
Perimeter is just adding the side lengths together so...
31-15-10=x
6=x
so your answer is 6ft
somebody help me please
Answers
Answer:
B. 3^(2/3)
Step-by-step explanation:
Mhanifa Plz help me with this thank you!
Answers
Answer:
D
Step-by-step explanation:
This is an example of the Pythagorean theorem.
In triangle BEH, the sum of the squares of the sides of the two smaller sides, BE and BH is equal to the longest side squared, EH.
Please help!!:(( I’ll give the best answer the brainliest :)
(and of y’all can please stop with the links it’s not working)
The quadrilateral SMUG on the coordinate plane has the following characteristics.
SM can be represented by the equation x+4y = 7 where 3 <_ x< _ 7
UG can be represented by the equation why equals 1/4x - 5/2 where 2<_x <_ 6
Part A: graph the figure represented by the information given above
Answers
Answer:
Step-by-step explanation:
HELP NEEDED!!! 20 POINTS FOR A ANSWER AND EXPLANATION ON QUESTION #2! I cant figure this out help me please
Answers
Step-by-step explanation:
Start at the orgin.
The y intercept in the equation is -1 so I would shift 1 unit down to the orgin at (0,-1)
Then at the point, since the slope is -4. I would go down -4 units then go over 1 unit to the right.. So the next point would be (1,-5) then so on and so on.
You can check if your graph is correct by writing out specific points on the linear equation and making sure there slope is equal to -4.
What is the perimiter of a quadrilateral with verticles at (5,2), (10,2), (5,5), and (10,5)
Answers
Answer:
55
Step-by-step explanation:
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Answers
Answer:
I believe it is C.
Answer:
B
Step-by-step explanation:
because I put it on the calculator and got 0.0195, and they give us 1.95, we have to move the decimal two times in front, that is -2. So the answer is B.
HELP NEEDED 20 POINTS AND BRAINLIST!!!! Please explain your answer and no links! please!
Answers
Answer:
From (0,0) and go down 1 and put a dot then down 4 and over to the right 1 and draw a line.
Step-by-step explanation:
Hope this helps have a nice day!
15 = 5(x +2 )
x=
ill mark brainliest and 20 points
Answers
Answer:
x=1
Step-by-step explanation:
15 = 5(x +2 )
15/5= 3
3-2= 1
x=1
At the fast food restaurant, one hamburger and five small fries cost $8.74. If two hamburgers and
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If a nintendo costs $225 and teh sales tax is 4.75%, how much will it cost in total to get the nintendo?
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Answer:
$235.69
Step-by-step explanation:
Add 10.6875 to 225
Answer:
$235.69
Step-by-step explanation:
A 1.5m tall boy casts a 3m shadow. Calculate the height of a tree that simultaneously casts an 8m shadow.
Answers
7.8x = 32.76
Show your work
Answers
Answer:
x=4.2
Step-by-step explanation:
7.8x = 32.76
/7.8 /7.8
x=4.2
A ______ is a comparison of two quantities. ratios can be a part-to-part,part-to- _______, or whole -to- __________ comparisons. ratios can be written with the word _____, with a _______, or as a ___________.
Answers
Answer:
ratio
part-to-whole
whole-to-whole
with the word to
with a colon
or as a fraction
Step-by-step explanation:
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Answer:
34
Step-by-step explanation:
This is because the whole angle is a right angle and equals 90°. You subtract 56 from 90 and get 34. Hope this helped you out!!
Answer:
i am pretty sure 34 (degrees)
Step-by-step explanation:
tell me if this is wrong.
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Answer:
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Step-by-step explanation:
Answer:
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Step-by-step explanation:
i dunno if these were supposed to be fractions
Please help.
Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.
Answers
Answer:
A
cuz polynomials cannot have negative exponents
Step-by-step explanation:
HELP
PLZZZ Z DONT GIVE ME A LINK
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Answer:
These relationships are realted because the variable is multiplied by ten to get the function.
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12 1/4cm: 122.5mm
50cm: 500mm
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By the way, can you follow me on Brainly?
Thanks!
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Answers
Answer:
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Answers
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Step-by-step explanation:
Answer:
any equation that has -5x +/- any number
Step-by-step explanation:
All you have to do to create an equation that is parallel is keep the slope the same but change its be value. (y = mx + b) <---- keep the mx the same
Does this graph represent a function?
Answers
Which statement is true about the lines 3−2=27 3 y - 2 x = 27 and 4−2=36 4 y - 2 x = 36 ?
Answers
The two lines 3 y - 2 x = 27 and 4 y - 2 x = 36 are parallel to each other because their slopes (i.e., -2/3 and -2/4) are equal.
What are parallel lines?Parallel lines are lines in a plane that do not intersect and are always the same distance apart. They have the same slope and will never meet, regardless of how far they are extended.
Therefore, the correct answer is as given above. It can be concluded that lines 3 y - 2 x = 27 and 4 y - 2 x = 36 are parallel lines to each other for their slopes (i.e., -2/3 and -2/4) are the same.
learn more about parallel lines: https://brainly.com/question/24607467
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The complete question goes thus:
Which statement is true about the lines 3−2=27 3 y - 2 x = 27 and 4−2=36 4 y - 2 x = 36 ?
A. lines 3 y - 2 x = 27 and 4 y - 2 x = 36 are parallel to each other
B. lines 3 y - 2 x = 27 and 4−2=36 are inequalities
C. lines 3−2=27 and 3 y - 2 x = 27 are the same
D. all lines are equal
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10 minutes: 234,000
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Answers
Answer:
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Step-by-step explanation:
Meaning...
shift ∠U 2 blocks to the left on the x-axis
shift ∠V 2 blocks vertically (up) on the y-axis
shift ∠W 2 blocks diagonally to the right
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Answer:
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Step-by-step explanation:
Answer:
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Step-by-step explanation: ??
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Answer:
16,872
Step-by-step explanation: