Answers
Y= 3
Y=3
Explanation
If you need to show work I can put it in the comments:)
Answer:
1. y=3
2. y=3
Step-by-step explanation:
Let's start with the first one, 2x-2y=-8...
Substitute x with -1 -----> 2(-1)-2y=-82 times -1 makes -2 so new equation is ---> -2-2y=-8Now add 2 on each side to get rid of 2 and get this ----> -2y=-6Now divide -6 by -2 to get this ----> y=3Let's start with the second one, 2x+2y=4
Substitute x with -1 -----> 2(-1)+2y=42 times -1 makes -2 so new equation is ---> -2+2y=4Now add 2 on each side to get rid of 2 and get this ----> 2y=6Now divide 6 by 2 to get this ----> y=3I hope my explanation and answer helps:)
Related Questions
Write the algebraic notation for dilation with a scale factor of ½
Answers
Answer: (x, y) goes to (1/2x, 1/2y)
Step-by-step explanation:
The ratio of the angle measure of the acute angle in a right triangle is 1:3
Answers
Answer:
2:6 because 2:6 is equivalent to 1:3
Step-by-step explanation:
1x1=1 and 3x2=6
How many solutions for the equation, 8x - 19 = -4 -7x
Answers
Answer: One.
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : 8*x-19-(-4-7*x)=0
Pull out like factors : 15x - 15 = 15 • (x - 1)
Solve : 15 = 0
Solve : x-1 = 0
Add 1 to both sides of the
A scoop of ice cream has a 3-inch diameter. How tall should the ice cream cone of the same diameter be in order to contain all of the ice cream inside the cone?
Answers
Answer:
12 inches
Step-by-step explanation:
Suppose the ice cream scoop has the shape of a sphere of a radius (r) inches.
Thus, the top of the cone will also have a radius (r) inches.
Let consider h to be the height of the cone in inches.
So, the objective is to make the volume of the scoop of the ice cream to be the same as the volume of the cone.
To do that; we need to equate both volumes together and make h the subject of the formula:
The volume of a sphere = 4/3 πr³ and the volume of a cone = 1/3πr²h
4/3 πr³ = 1/3πr²h
Multiply both sides by 3
4πr³ = πr²h
4r = h
h = 4(3)
h = 12 inches
To contain all the ice cream inside the cone, the height of the ice cream cone needs to be 12 inches tall
Kevin is opening up a bookstore, where he sells both new and old books. He charges $10.75 for a new book, and $3.50 for an old book. What was Kevin's revenue last month if he sold 18 new books and 21 old books?
Answers
The revenue last month Kevin, if he sold 18 new books and 21 old books, will be $ 267.
What is the linear system?A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.
Kevin is opening up a bookstore, where he sells both new and old books.
He charges $10.75 for a new book and $3.50 for an old book.
Then the revenue last month Kevin, if he sold 18 new books and 21 old books, will be
Then the total revenue will be
Total revenue = 10.75 x 18 + 3.50 x 21
Total revenue = 193.5 + 73.5
Total revenue = $ 267
More about the linear system link is given below.
https://brainly.com/question/20379472
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Which expression does the number line represent?
NA
0
1
4
2
4
3
4
9
5
4
6
4
7
4
4
8
4
ده
9
Save and Exit
Next
Sun
Answers
Answer: D) 9 Over 4 divided by three-fourths
Step-by-step explanation:
The number line shown below is divided into 3 equal parts. To do so the highest number would have to be divided by a number that would give 3 as an answer.
Say that number is x;
x = (9/4) / 3
= 0.75
= 3/4
Number line shows 9 Over 4 divided by three-fourths .
Compare the numbers
Answers
Answer:The answer is ≥ greater than or equal to
can you mark me Brainliest please
Find the rate of change of y with respect to the x of the line that passes through points (-28,8) and (-42,15)
Answers
Answer:
-1/2
Step-by-step explanation:
8-15 = -7
-28 - -42 = 14
-7/14 = -1/2
10x+36-38x-47 I don't understand this question i am so confused please explain i would be really thankful.
Answers
-28x-11
Step-by-step explanation:
10x-38x=-28x
+36-47=-11
so the answer is -28x-11
If a train travels 1,600 km in 16 hours, how fast is it moving?
Answers
Answer:
100km per hour
Step-by-step explanation:
16/16= 1 hour
1600/16= 100
solve the question, thank you
Answers
Answer:
A . m = 11/6
its going to be a
i need helpppp again
Answers
Answer:
2/7b + 10
Step-by-step explanation:
Math question:
In ΔRST, m
Answers
Answer:
huh i dont understand can u post a pic
4m-3(m +2) what is the answer step by step
Answers
Answer:
-1m-6
Step-by-step explanation:
1. Multiply -3*m = -3m
2. Multiply -3* 2 = -6
3. Combine like terms : 4m + -3m = -1m
4. -1m - 6
But all this-the mysterious, far-reaching hair-line trail, the absence of sun from the sky, the tremendous cold, and the strangeness and weirdness of it all-made no impression on the man.
What can you infer about the man from the excerpt above?
Answers
Answer:huh
Step-by-step explanation:
Explanation
If the man is completely unaffected by the bad weather that means he is very focused or serious about something.
Which value of x makes this equation true? 35 + 42 = 12 + x
Answers
Answer:
65
Step-by-step explanation:
So let's first set up our equation here:
35 + 42 = 12 + x
Now, let's add like terms
77 = 12 + x
Now, let's subtract both sides by 12
65 = x
Answer:
x=63
Step-by-step explanation:
35+42= 75
75-12= 63
Tell me which ones are greater than or lesser than with these <>?
Answers
Answer:
1. >
2.<
3.<
btw
Absolute value equations are equations where the variable is within an absolute value operator, like |x-5|=9. The challenge is that the absolute value of a number depends on the number's sign: if it's positive, it's equal to the number: |9|=9. If the number is negative, then the absolute value is its opposite: |-9|=9.
a line passes through the point (-6,4) and has a slope of 5/2
Answers
The y intercept is 4
Find the measure of angles 1,2 and 3
Answers
Answer:
??
Step-by-step explanation:
where is the question
x2-6x+3 can be written in the form of (x+m)2 +n find the value of m and n
Answers
Answer:
2(x-3x) + 3
value of X and M is x and -3x respectively
Step-by-step explanation:
you can factor out the 2 from the 2x -6x and gets the 2(x-3x) while n is the constant that remains the value of 3
I hope this helps
Answer:
m = - 3, n = - 6
Step-by-step explanation:
Expand and compare coefficients of like terms, that is
(x + m)² + n
= x² + 2mx + m² + n
Compare to x² - 6x + 3
comparing coefficients of x- term
2m = - 6 ( divide both sides by 2 )
m = - 3
Comparing constant terms
m² + n = 3 , that is
(- 3)² + n = 3
9 + n = 3 ( subtract 9 from both sides )
n = - 6
To change Celsius temperatures to Fahrenheit temperatures, you can use the formula F = 95C + 32. Which answer is the best first step to solve the equation for C?
Answers
Answer: I think that the guy above is right just subtract 32.
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The first step in solving the equation for C is
Subtract 32 on both sides.
F - 32 = 95C + 32 - 32
F - 32 = 95C
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example:
2 + 3x + 4y = 7 is an expression.
We have,
To change Celsius temperatures to Fahrenheit temperatures, you can use the formula F = 95C + 32.
Solve for C.
F = 95C + 32
Step 1:
Subtract 32 on both sides.
F - 32 = 95C + 32 - 32
F - 32 = 95C
Divide both sides by 95.
(F - 32)/95 = C
C = (F - 32) / 95
Thus,
The first step in solving the equation for C is
Subtract 32 on both sides.
F - 32 = 95C + 32 - 32
F - 32 = 95C
Learn more about expressions here:
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Q
H.
The two-column proof below describes the statements and reasons for proving that corresponding angles are congruent:
Step
Statements
Reasons
1
UV || WZ
Given
2
Points S. Q, R, and T all lie on the same line.
Given
3
mZSQT = 180°
Definition of a Straight Angle
Angle Addition Postulate
4
m2SQV + m2VQT = m_SQT
5
Substitution Property of Equality
6
m2VQT + mZZRS = 180°
Same-Side Interior Angles Theorem
Substitution Property of Equality
7
m2SQV+mZVQT = m2VQT + mZZRS
Answers
Answer:
i can't understnd it at all i mean you organized it but what does those mean??
Step-by-step explanation:
Choose a system of equations with the same solution as the following system:
4x − 2y = 6
2x + y = 5
A) −4x − 2y = 10
2x − 3y = 21
B) 4x + 2y = 10
10x + y = 21
C) −4x − 5y = −1
2x − 6y = 10
D) 3x + 2y = 6
9x + y = 17
Answers
Answer:
The answer is C.
Answer:
the answer is C
Step-by-step explanation:
I took the test
Find the exact length of the third side.
10
6
PLEASE HELP GUH
Answers
Answer:
8
Step-by-step explanation:
I'm using this equation: a^2+b^2=c^2
x^2+6^2=10^2
x^2+36+100
x^2= 64
x=sqrt64
x=8
Brody had his computer repaired at Store A. His bill was:
Initial Repair Cost = $1,200
Sales Tax of 6 percent = $72.00
Gratuity of 15 percent
Explain how you would calculate the gratuity for the
services provided.
Answers
Answer:
Add the repair cost and tax to get the total amount. Then multiply the total amount by 0.15 to find the gratuity.
Step-by-step explanation:
This is sample response
The gratuity for the services provided is $190.8 if the Initial Repair Cost = $1,200, the Sales Tax of 6 percent = $72.00, and the Gratuity of 15 percent.
What is the percentage?It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.
It is given that:
Brody had his computer repaired at Store A. His bill was:
Initial Repair Cost = $1,200
Sales Tax of 6 percent = $72.00
A gratuity of 15 percent
Total cost = 1200 + 72 = 1272
The gratuity for the services provided = 0.15x1272 = $190.8
Thus, the gratuity for the services provided is $190.8 if the Initial Repair Cost = $1,200, the Sales Tax of 6 percent = $72.00, and the Gratuity of 15 percent.
Learn more about the percentage here:
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Is the equation, y= 12x proportional or non-proportional? Explain why or why not. *
Answers
Answer:
proportional
Step-by-step explanation:
because it has a constant ratio
Answer: Proportional
Step-by-step explanation:
The equation for a proportional relationship is y=kx. This equation: y=12x fits the equation, so it's proportional.
What is the slope of the line 4x-2y=5
Answers
Answer:
slope = 2
Step-by-step explanation:
Answer: C
Step-by-step explanation:
Edgen 2023
What is the equation for this line ?
Answers
Answer:
[tex]y = -\frac{1}{3}x + 5[/tex]
Step-by-step explanation:
y = mx + b
Let's start with where the line crosses the y axis. We can see it crosses at 5.
So b = 5.
Let's try another point to figure out m, (3,4).
4 = 3m + 5
3m = -1
m = [tex]-\frac{1}{3}[/tex]
Answer:
y=-1/3+5
Step-by-step explanation:
since the line is going downhill, the slope would be negative (the slope is the number with the x attached). The slope is 3 over and 1 down. You would write it as rise over run, so it would be a -1/3. The line hits the y axis at 5, so the b (y=mx+b is the slope equation) would be 5.
Please hwlp! Ava is driving her car. At the end of 2 hours she has driven 92 miles, and at the end of 5 hours she has driven 245 miles. What is her average rate of change?
_(blank)_ miles per hour
Answers
Use the points (2,92) and (5,245)
Then do y2-y1/x2-x1
So 245-92/5-2
=153/3
Simplify= 51
Adam Levine wants to buy a new outfit for the Voice. The suit he wants is priced at $300
but it is on sale for 22% off. What discount would Adam get if he buys the suit?
He would get a discount of $
HELP!
Answers
Answer:
66 bucks
Step-by-step explanation:
take 300 and 22% then subtract that answer from 300.