Answers
Answer:
x=6 and y= -6
Step-by-step explanation:
for this one is more easy in how are your equations.
-4x-2y= -12
4x+8y= - 24
as you can see the x's in both equations are the same number and opposite sign (+,-)
solving by elimination do you need to start with equations with one of the variables in both equations with the same number and different sign.
after you have your equation you combine both and you can eliminate x
-4x-2y= - 12 after you combine you are going
4x+8y= - 24 en with 6y=-36
6y= -36 the next step is divide 6 in both
6 6 sides
y= - 6 ⬅️and you ends whit this
after you solve for one of the letters you need to find the other ones. in this case we need to find x
so to find x you only needs to use one of the original equations and solve for x
-4x-2y= -12 original equation
-4x-2(-6)= -12 switch the y -6
-4x+12= -12 multiply the -6×2
-12. -12 substract 12 in both sides
-4x= -24 divide -4 also in both sides
-4 -4
x=6 final answer.
here is also how do you do you solve for x using the other equation; and you can see that we get the same answer, but you don't need to copy both of the equations when you are solving for the other letters jus I write also how do you do with this one in case that can be necessary or if this helps you. Also are the same steps as the other one.
4x+8y= - 24
4x+8(-6)= -24
4x-48= - 24
+48 +48
4x=24
4 4
x=6
I hope and this helps and I'm really sorry for make this longer.
Related Questions
HOW MANY TIMES DOES 6 GO INTO 25
Answers
Answer:
25/6 = 4 with a remainder of 1
Answer:
the answer is
25÷6=4.1 because it is
helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
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Answers
Answer:
Answer: B
Step-by-step explanation:
does not show up on graph
CAN SOMEONE PLEASE HELP THIS IS DUE AT MIDNIGHT (I’ll give brainlist)
Answers
Answer:
d° = 62°
e° = 90°
f° = 27°
g° = 27°
h° = 118°
j° = 62°
k° = 63°
Step-by-step explanation:
The relationship between the given angles are;
k° = 63° (Vertically opposite angles)
63° + f° = 90° (Given complementary angles)
∴ f° = 90° - 63° = 27°
f° = 27°
g° = f° (Vertically opposite angles)
∴ g° = f° = 27°
g° = 27°
e° + 63° + f° = 180° (The sum of angles on a straight equals 180°)
∴ e° = 180° - (63° + r°) = 180° - (63° + 27°) = 90°
e° = 90°
h° = 118° (Vertically opposite angles)
118° + d° = 180° (The sum of angles on a straight equals 180°)
∴ d° = 180° - 118° = 62°
d° = 62°
j° = d° (Vertically opposite angles)
∴ j° = d° = 62°
j° = 62°
Stephanie is earning simple interest of 3.5% on her money each month. She currently has $1325 in her account. What will her balance be in 5 months?
Answers
Answer:
$1556.88
Step-by-step explanation:
Since Stephanie is earning simple interest and not compound interest, we can multiply her interest rate for each month by how many months we are calculating for.
0.035 x 5 = 0.175
Then multiply that by her current balance but change the 0 in front of the 0.175 to a 1 to reduce the number of steps we have to take. (It automatically adds what is earned in interest to her current balance.)
1.175 x 1325 = 1556.875
help me with this if you can
Answers
Answer:
y = 1/2x + 7
Step-by-step explanation:
this is it in slope-intercept form hope it helps
(sorry if its wrong)
Two families went to the movies. The Davis family paid $39 for 2 adult
tickets and 3 student tickets. At the same theater, the Tyler family paid $23
for 1 adult ticket and 2 student tickets. What is the price of a student
ticket?
Answers
Answer:
$7
Step-by-step explanation:
Let a be the price of the adult ticket and s be the price of the student ticket
That means that:
2a+3s=39
and
a+2s=23
Using elimination
-2(a+2s=23)
-2a-4s=-46
-2a-4s=-46
2a+3s=39
Eliminate a:
-s = -7 ; s = 7
I probably made this so much more complicated than it should be but...
Tyrone invested money for 3 years at 5% interest. If the interest paid was $60, how much money was invested? What was the total in the account after 3 years?
Answers
Answer:
He invested $1200 and had a balance of $1260 after 3 years.
If jon had 2,881 and tia had 4,163 how much more money tia has then jon
Answers
Answer:
Tia has $1,282 more than Jon
Step-by-step explanation:
4,163-2881 = 1282
Tia has $1,282 more than Jon
Answer:
1282
Step-by-step explanation:
Can somebody help me? Preferably with working out if possible
Answers
Answer:
d = 9
Step-by-step explanation:
Given
1 = [tex]\frac{1}{3}[/tex] d - 2 ( multiply through by 3 to clear the fraction )
3 = d - 6 ( add 6 to both sides )
9 = d
Answer:
d=9
Step-by-step explanation:
First we can do same to both side by adding 2 to both sides:
1=1/3d-2
+2 +2
--------------
3 = 1/3d
Then to get the d on its own, we multiply each side by 3
3=1/3d
*3 *3
---------
9=d
Our final answer is 9
Mr tan saves 960$ a month. He wants to go to a holiday that costs 4200 $. What is the least no.Of months will take to save for the holiday
Answers
Answer:
If he has no other expenses, 5
Step-by-step explanation:
4200/960
five, if you round up
4.375
Help assssaaaaaaap please
Answers
Answer:
f(x) = 165 * x + 3
si el radio de la base de este cilindro es de 15cm y su altura es de 18cm ¿cual es el volumen del cilindro?
Answers
v= 3.1416x(15cm) ^2x18cm
v= 12723.48cm^3
i need the answer fast ill give brainliest
y=___
Answers
Find m angle K. Find m angle K.
Answers
Answer:
Step-by-step explanation:
8x - 29 + 6x - 11 + 3x - 1 = 180
17x - 41 = 180
17x = 221
x = 13
m<K= 8(13) - 29 = 104 - 29 = 75°
(Algebra) What is the lowest common denominator of 3/8x and 5/18x?
Answers
Answer: 3/8x
To find the least common denominator first convert all integers and mixed numbers (mixed fractions) into fractions. Then find the lowest common multiple of the denominators. This number is same as the least common denominator .You can then write each term as an equivalent fraction with the same LCD denominator.
Write an exponential growth model giving the earnings y (in millions of dollars) t years after 2015. Write the base of the model as a decimal.
A. An exponential growth model is y=??
B. In which year will the player's earnings first exceed $5,000,000?
Answers
Answer:
B
Step-by-step explanation:
Hshwhehebebebebeheheh
What is the interest earned of 600$ at 5% for 2years
Answers
Simple interest , I, is calculated by multiplying the principal, P, by the rate,r, by the time, t, in years:
I = P * r * t
Here, P = $600
r = 0.05 (decimal value for 5%)
t = 2 years
Part a)
The interest earned will be:
I = P * r * t
I = 600 * 0.05 * 2
I = $60
Part b)
The balance in the account will be $600 plus the interest earned or:
$600 + 60 = $660
Answer:
$60 interest
Step-by-step explanation:
divide 5 by 100 = 0.05
multiply 0.05 by 600 = 30
then multiply 30 by the number of years (2) 30×2= 60
60 dollars interest
I think
If you can help me, I would be very happy.
Answers
Answer: 116 round that to the nearest hundreth.
I hope this helped you well.
e MULTIPLE CHOICE QUESTION Now what does it look like after the next step? (hint: PEMDAS)
Answers
Answer: Multiplication
Step-by-step explanation: The M in PEMDAS stands for Multiplication
[tex] \frac{p}{ - 8} + 9 > 13[/tex]
closed circle or open circle?
Answers
is the answer open circle?
What is 4(b + 2), if b = 7?
Answers
Answer:
the answer would be 36
Step-by-step explanation:
hoped I helped:)
Answer:
Hey mate....
Step-by-step explanation:
This is your answer....
= 4×7+2
= 28+2
= 30
Hope it helps you....
Mark me as the brainliest....
FOLLOW ME....!!!!!!
what is the slope of a line parallel to the line who's equation is 5x-y=-9?
Answers
Answer:
5
Step-by-step explanation:
the slopes will be the same if they are parallel
reagrange the equation to find the gradient
5x-y = -9
y= 5x+9
gradient = 5
At the end of a snow storm, Michael saw there was a lot of snow on his front lawn. The temperature increased and the snow began to melt at a steady rate. The depth of snow on Michael's lawn, in inches, can be modeled by the equation S=-2t+20,S=−2t+20, where tt is the time, in hours, after the snow stopped falling. What is the xx-intercept of the equation and what is its interpretation in the context of the problem?
Answers
Answer:
x-intercept equals 10
interpretation is that, after 10 hours, all of the snow will be melted
Step-by-step explanation:
The linear equation can be used to solve to get the value of unknown quantities. The x-intercept of the equation is 10 and its interpretation in the context of the problem is that it shows zero depth at t = 10.
What is a Linear equation?A linear equation is a equation that has degree as one.
To find the solution of n unknown quantities n number of equations with n number of variables are required.
The given equation for the depth of the snow is as below,
S = -2t + 20
Here, S is the depth at a time t.
Suppose S is on y-axis and t on the x-axis.
Since the x-intercept of an equation is found by Substituting y = 0.
Substitute S = 0 in the given equation to get,
0 = -2t + 20
=> 2t = 20
=> t = 10
It means at t = 20, the depth of snow will become zero.
Hence, the x-intercept for the given case is 10 and it shows zero depth of the snow.
To know more about linear equation click on,
brainly.com/question/11897796
#SPJ5
need help on this !!!!!
Answers
Answer:
17
Step-by-step explanation:
Remark
In this formation, the chords cut each other so that
Equation
(3x - 1) * 3 = 12*(x -2) Remove the brackets.
Solution
9x - 3 = 12x - 24 Add 24 to both sides.
9x - 3 + 24 = 12x - 24 + 24 Combine
9x + 21 = 12x Subtract 9x from both sides
9x - 9x +21 = 12x - 9x
21 = 3x Divide by 3
21/2 = 3x/3
7 = x
Find QR
QR = 12 + x - 2
QR = 10 + 7
QR = 17
I need help getting the answer
Answers
Answer:
Step-by-step explanation:
The center is at (2,-7). The radius is 2.
(x-2)² + (y+7)² = 2²
For Exercises 1 and 2, write and solve an equation to find each missing length. Round to the nearest tenth if necessary. An observer is standing 30 feet from a flagpole. She is looking at the top of the flagpole. How tall is the flagpole? Round to the nearest tenth if necessary.
Answers
Answer:
21.65 feets
Step-by-step explanation:
First we obtain the angle of elevation :
Using Pythagoras rule :
Cosθ = adjacent / hypotenus
Cos θ = 30 / 37
θ = cos^-1(30/37)
θ = 35.82°
Hence, height of flagpole :
Sin θ = opposite / hypotenus
Sin θ = x / 37
Sin(35.82) = x / 37
0.5853083 * 37 = x
x = 21.65 feets
Height of flagpole = 21.65 feets
if i had 2 cats and my mom bought me 4 dogs how many animals is that in total
Answers
Answer:
2 cats + 4 dogs = 6 animals in total.
:)
HELP ASAP PLS PLS PLS
Answers
Answer: vertical
Step-by-step explanation:
Answer: its A
Step-by-step explanation:
PLEASE HELP MEE!!!!!!!!!!!!!!!!!!!
Answers
Answer:
a b c
plz give branliest
Step-by-step explanation:
Answer:
the first answer choice and the 3rd one down.
a polynomial function with rational coefficients has the given roots. find two additional roots -2i and square root of 10
Answers
Answer:
(-2)(100) or 10^2 is 100
Step-by-step explanation:
(x -2)(x+100) =x
Additional roots of polynomial function P(x) with rational coefficients are (2i) and (- √10).
What is conjugate of complex number?
" If z = a +bi be the given complex number, then its conjugate is represented by [tex]\bar{z}[/tex] = a -bi , where real parts remain same only imaginary part get changed with opposite sign."
Theorem used
Conjugate Root theorem
Complex conjugate root theorem states that if P(x) is a polynomial in one variable with real coefficient , for P(x) if one root is a + bi with real numbers a and b then its conjugate that is a - bi is also another additional root of P(x).
According to the question,
Two given roots of polynomial function with rational coefficients are -2i and √10.
As per Conjugate root theorem,
Here one root is 0 - 2i then other root is its conjugate 0 + 2i
Also one root is 0 + √10 then another root is 0 - √10.
Therefore, two additional roots are 2i and -√10.
Hence, additional roots of polynomial function P(x) with rational coefficients are (2i) and (- √10).
Learn more about conjugate of complex number here
https://brainly.com/question/18392150
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