Answer:
Step-by-step explanation:
In this particular case we have the following system of equations:
y
=
−
3
x
+
4
[
E
q
.
1
]
x
+
4
y
=
−
6
[
E
q
.
2
]
Substituting
[
E
q
.
1
]
in
[
E
q
.
2
]
:
x
+
4
(
−
3
x
+
4
)
=
−
6
Applying the distributive property on the left side:
x
−
12
x
+
16
=
−
6
Simplifying
:
−
11
x
=
−
22
Solving for
y
:
x
=
−
22
−
11
=
2
Substituting
x
=
2
in
[
E
q
.
1
]
:
y
=
−
3
(
2
)
+
4
=
−
2
Therefore
, the solutions are
x
=
2
and
y
=
−
2
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]y = - 3x + 4[/tex]
Add sides 3x
[tex]y + 3x = 3x - 3x + 4[/tex]
[tex]3x + y = 4[/tex]
_________________________________
[tex]1) \: 3x + y = 4[/tex]
[tex]2) \: - 4x + y = - 10[/tex]
Multiply sides of the (( equation 2 )) by - 1
[tex]1) \: 3x + y = 4[/tex]
[tex]2) \: 4x - y = 10[/tex]
Add up equations
[tex]3x + 4x + y - y = 4 + 10[/tex]
[tex]7x = 14[/tex]
Divide sides by 7
[tex] \frac{7x}{7} = \frac{14}{7} \\ [/tex]
[tex]x = 2[/tex]
Put the value of x in one of the (1) or (2) equations to find the value of y .
I put it in equation 1 :
[tex]3x + y = 4[/tex]
[tex]3(2) + y = 4[/tex]
[tex]6 + y = 4[/tex]
[tex]y + 6 = 4[/tex]
Subtract sides 6
[tex]y + 6 - 6 = 4 - 6[/tex]
[tex]y = - 2[/tex]
And we're done...
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Sonji paid $25 for two scarves, which were different prices. When she got home she could not find the receipt. She remembered that one scarf cost $3 more than the other. What was the price of the more expensive scarf?
plzz help!!!!!!!!!!
the answer is 53
Step-by-step explanation:
25 plus 25 is 50 plus 3
-6 5 4 3 2 1
1 2 3 4 5 6
1
1-2
-3
Water Slide
Restrooms
-5
Answer:
I am sorry what are you showing
Reggie is 13 years older than his cousin Ramon. In 9 years from now, Reggie will be twice as old as Ramon will be then. How old is Ramon now?
Answer:
what were the anwser choses
Step-by-step explanation:
he is 6 years old right now
The school bought a new computer for me for $960. If that is 120% of what
the store paid for it, how much did the store pay for it?
Answer:
The store paid $800 for it
Step-by-step explanation:
let x be the value the store paid for it
120/100 * x = 960
120x = 96000
x = 96000/120
x = $800
?/1 Movie Theater Admission Adult: $10 Children (under 13): $8 Matinee (before 6 P.M.): $5 Connor (age 13), his sister (age 7), and Connor's two parents go to a movie on Saturday night. Write an expression for the total cost. What is the total cost?
Answer 10$ + 8$+5$= answer that first.
Step-by-step explanation:
Find the values of x and y
Answer:
x = 8
y = 21
Step-by-step explanation:
The angle (7x + 12)° and the angle (12x-28)° are alternate interior angles and so has got the same measurement
7x + 12 = 12x - 28
12 + 28 = 12x - 7x
40 = 5x divide both sides by 5
8 = x
The sum of angle (12x - 28)° and (9y - 77)° must be equal because they make a straight line with the measure of 180°
12x - 28 + 9y - 77 = 180 we already found the value of x as 8 so let's rewrite the equation
12 × 8 - 28 + 9y - 77 = 180
96 - 28 - 77 = 180 add like terms
9y - 9 = 180
9y = 189 divide both sides by 9
y = 21
Which equation has a slope of -2 and passes through the point (3,-4)
Answer:
B. y = -2x + 2
I need help ASAP please
Answer:
4th one is correct
Step-by-step explanation:
At a high school football game, admission is $5 for students and $10 for non-students. There were 500 people at the first game, and the school made $4,000 from admissions. In this activity, you will find the number of students and non-students at the game.
Please write the two equations algebraically and then solve :)
Answer:x = 200 students
y = 300 non-students
Step-by-step explanation:
5x + 10y = 4000
x + y = 500
Set y = 500-x
5x + 10(500-x) = 4000
5x + 5000-10x
-5x + 5000 = 4000
-5x = -1000
x = 200 students
y = 300 non-students
Let's double checks
5(200) + 10(300)
1000 + 3000 = 4000
What does 0 represent on the number line?
Answer: So zero represents the point when locating a point on the number line like negatives and positives
explain what 9 represents in each of these numbers
a19
b 91
Answer:
a) 9 is in the ones place.
b) 9 is in the tens place.
Answer:
a=units b=tens
Step-by-step explanation:
What type of correlation is the graph below?
a
No correlation
b
Negative
c
Quadratic correlation
d
Positive
Answer:
C I think
Step-by-step explanation:
Need help plssssssssssss
Answer:
189
Step-by-step explanation:
Can someone help me with this geometry proof?
Answer:
Step-by-step explanation:
IM LEARNING THIS TOO LOL
angle one and angle 2 are congruent because of the corresponding angles theorem
angles 2 and 3 are linear pair so 1 plus 2 equals 180
i believe you can use the transitive property
A wizard-in-training has 300 grams of 20% liquid-gold solution. He wishes to drain some and replace it with an 80% solution, so that he gets 300 grams of 35% solution. How many grams should the wizard drain and replace with 80% solution?
Answer:
75 grams
Step-by-step explanation:
I have in on rsm and i put it in and its right :)
Anju wants to serve 0.75 of the pizza she made to her family for dinner. What fraction is equivalent to 0.75?
Answer:
3/4
Step-by-step explanation:
0.75 is equal to three fourths
Answer:
3/4 is equivalent to 0.75
Step-by-step explanation:
Hope this helps c:
is my answer right or do i need to change it
Answer:
It’s right!
Step-by-step explanation:
Which equation represents the relationship between x and y?
A) y= x + 3
B) y= 3x
C) y= x^2
Answer:
y=x +3
Step-by-step explanation:
this is the equation because it shows the actual relationship between x and y
12, 14, 17, 18
What is the mean?
Answer:
The mean is 15.25.
Step-by-step explanation:
First, we need to be sure we know that the mean is the average number in the group of numbers. That doesn't mean the most repeated or the number in the middle. Simply, the average.
To find the mean of a group of numbers you simply add them all together and divide by the number of numbers. So, let's solve.
12 + 14 + 17 + 18
= 61 ÷ 4
= 15.25
So the mean of 12, 14, 17, and 18 is 15.25.
Hope this helps! If you have any additional questions please don't hesitate to ask me or your teacher to be sure you master the subject. :) Stay safe and please mark brainliest!
y = (x - 4)(x-8)
Distribution
Answer:
[tex]y= x^{2} -12x+32[/tex]
Explanation:
[tex]y=x^{2} -8x-4x+32\\y= x^{2} -12x+32[/tex]
How do I write that out
Answer:
just type in -3
Step-by-step explanation:
7 Find the slope ( 2, -3) (5, -4)
Answer:
m=−1/3
Step-by-step explanation:
PLEASE HELP! I'M STUCK!
Answer:
Step-by-step explanation:
a³ + b² +c²/a + b² + c³=1³ + 3² + 5/1 + 3² + 5³
=1 x 1 x 1 + 3 x 3 + 5/1 + 3 x 3 + 5 x 5 x 5
=1 + 9 + 5/1 + 9 + 125
=15/135
=1/9
Name a set of vertical angles
Answer:
EKH and FKG
Step-by-step Explanation:
you could choose any sets with a common vertex. i just chose those two
Plz help i dont understand this at all
Answer:
(-4,-1)
Step-by-step explanation:
Look at where the lines on the graph intersect, then find the point.
Answer:
(-4, -1) I believe I'm not 100% Sure it has been a while since I have done graphs
I'm sorry if it is wrong
If two 12-sided dice are rolled, what is the probability that both numbers will be even?
ANSWERS:
1/2
73/144
1/4
71/144
The probability that both numbers will be even will be ( 1 / 4 ). The correct option is C.
What is probability?Probability is defined as the ratio of the number of favorable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.
Probability = Number of favorable outcomes / Number of sample
Given that two 12-sided dice are rolled and need to calculate the probability of getting an even number.
Number of favorable outcomes = 6 x 6 = 36
Number of sample = 12 x 12 = 144
The probability of getting an even number will be calculated as:-
Probability = Number of favorable outcomes / Number of sample
Probability = 36 / 144
Probability = 1 / 4
Therefore, the probability that both numbers will be even will be ( 1 / 4 ). The correct option is C.
To know more about probability follow
https://brainly.com/question/24756209
#SPJ5
BRAINLISTS!! 35 (69) points !!
match each equation with its solution.
A) -1.4 n + 2.1 = 6.58
a) n = -32
B) 4 n - 2 3/4 = -22 3/4
b) n = -5
C) 5.7 n + 4.1 = 2.96
c) n = -0.2
D) n/8 + 1/2 = -3 1/2
d) n = -3.2
Thank you..
Answer:
(A) and c
(B) and a
(C) and d
(D) and b
Step-by-step explanation:
these are from the calculations i got, what you do is minus the two answers you have to find n
For equations,
A) -1.4 n + 2.1 = 6.58 then n = 3.2
B) 4 n - 2 3/4 = -22 3/4 then n=24
C) 5.7 n + 4.1 = 2.96 then n=-0.2
D) n/8 + 1/2 = -3 1/2 then n=24
What is Equation?Two or more expressions with an Equal sign is called as Equation.
A) -1.4 n + 2.1 = 6.58
Subtract 2.1 on both sides
1.4n=6.58-2.1
1.4n=4.48
Divide both sides by 1.4
n=3.2
B) 4 n - 2 3/4 = -22 3/4
4n-11/4=-85/4
4n=85/4+11/4
4n=96
Divide both sides by 4
n=24
C) 5.7 n + 4.1 = 2.96
5.7 n = 2.96- 4.1
5.7n=-1.14
n=-0.2
D) n/8 + 1/2 = -3 1/2
n/8 = -3 1/2-1/2
n/8 = -5/2-1/2
n/8 = -3
n=-24
Hence, equations A) -1.4 n + 2.1 = 6.58 then n = 3.2
B) 4 n - 2 3/4 = -22 3/4 then n=24
C) 5.7 n + 4.1 = 2.96 then n=-0.2
D) n/8 + 1/2 = -3 1/2 then n=24
To learn more on Equation:
https://brainly.com/question/10413253
#SPJ5
can you help me here plz
Answer:
Your answer is B
Step-by-step explanation:
[tex]\sqrt{-81} =\sqrt{81i^{2} } or 9i.\\[/tex]
Hope this helps :D
Answer:
Step-by-step explanation:
√-81 = 9i
Since the root is a negative, you need the i in the answer
3. Three of the following statements are true.
Which one is NOT true?
1-12] > 1
10> -4
120 >1-101
61-3
Answer:
The correct answer is A or option 1
PLEASE HELP! I’ll give brainliest.
Find the y-intercept of the line on the graph.
Enter the correct answer.