What is the value of x+y?
Eight grade math
Hello! The value of x+y is 12
Make sure to read an explanation so you can understand the solution better.
Any questions about the answer and explanation can be asked through comments.
Step-by-step explanation:
We can simply solve the system of equations by substituting x = 3y in the first equation
[tex] \large{2x + 2y = 24} \\ \large{2(3y) + 2y = 24} \\ \large{6y + 2y = 24} \\ \large{8y = 24} \\ \large{y = 3}[/tex]
Therefore, the value of y is 3. Then we substitute the value of y in x = 3y.
[tex] \large{x = 3y} \\ \large{x = 3(3)} \\ \large{x = 9}[/tex]
Therefore, the value of x is 9.
Since you want to find x+y, simply add 9 and 3 as we get 12.
Therefore x+y = 12.
I would really appreciate some help! Please!
1. Determine the equation for the line of
best fit in slope-intercept form.
2. Include the two points you used to find the slope.
3. Verify your equation is correct by substituting a given point on the line into your equation.
Answer:
y=
[tex] \frac{2}{15} [/tex]
x+10
Step-by-step explanation:
we know the y-intercept : (0,10)
picking another point on the line, (2,25)
finding slope is
[tex] \frac{y2 - y1}{ x2 - x1} [/tex]
so inserting that together is:
[tex] \frac{2 - 0}{25 - 10} [/tex]
that equals to,
[tex] \frac{2}{15} [/tex]
and since we already have the y-intercept you take the 10 to replace the b in the equation y=x+b
meaning x = slope and b = y-intercept
equation all together
y =
[tex] \frac{2}{15} [/tex]
x + 10
Parallel Lines never intersect because...
A. they have the same slope
B. they have different y-slope
C. they have the same y-intercept
D. they have different slopes.
Answer:
they have the same slopes
Step-by-step explanation:
lines that have the same slope never touch therefore they are parallel.
hence the answer is A
easy question for lots of points
would it be seven ÷ by three
Answer: 7 divided by 3
A city map is laid out on a coordinate grid with City Hall at the origin. Each unit on the grid represents a distance of one city block.
Max spends the day running errands and visiting the following locations before heading back to his apartment.
Location Coordinates
Post Office (–15, –4)
Library (–15, 16)
Police Station (–3, 16)
Bank (–3, 8)
Coffee Shop (4, 8)
Pet Store (4, –4)
Grocery Store (–8, –4)
Which of the following options has a distance of 12 city blocks? Select three that apply.
Library to Police Station
Police Station to Bank
Bank to Coffee Shop
Pet Store to Grocery Store
Coffee Shop to Pet Store
Post Office to Library
Answer:
library to police
Step-by-step explanation:
I really need help! I will mark brainliest plz look at my profile to see my question. THEN I WILL GIVE BRAINLIEST PLZ HELP IST TIMED!
Answer:
1 is phi 2 is emar 3 is privacy practices
Chris borrowed $1,500 at a simple interest rate of 5% to buy a computer. He plans to have the loan paid back in 2.5 years. How much simple interest will Chris pay
work needs to be shown
Your Answer:
$75
Step-by-step explanation:
1. 5% to a decimal: 0.05
2. 0.05 × 1,500 = 75
Hope this helped
A rectangular barn measuring 14 feet b 10 feet is located in one corder of a fenced area. Robert ties his cow to the corner of the barn so the animal can graze anywhere within the circular area outside the barn and fence. If the cow is tied with a 24 ft rope, approximately how much grazing area does the cow have?
If when the cow is tied with a 24 ft rope, So approximately, The Cow has 1,356.48 Ft of grazing area.
Calculation of Circular area
For this situation, you would be translating for the area of 3/4 of a circle with the radius being 24ft.
So the area of a circle is a is = PI R squared so plugin 3.14(24) squared order of functions says to square first so 24 squared is 576.
Then PI or 3.14 times 576 equals 1808.64
Now because it is exclusively 3/4 of a circle you will reproduce the response by 3/4 which is 1,356.48 ft.
Therefore, The Cow has 1,356.48 Ft of grazing area.
Find more information about Circular area here:
https://brainly.com/question/24119229
A Gallup Poll interviews a random sample of 2,500 Adult Americans to predict the opinions of all adults living in the United States on color discrimination. ( BIASED OR UNBIASED)
Answer:
unbiased
Step-by-step explanation:
i want brainest
Ok ok I know I’m gonna ask this again so please ( you do have to get me all the names btw ) I’ll give you brain list
Answer:
1. quadrilateral
2. kite 3. trapezoid
4. parallelogram 5. isosceles trapezoid
6. rhombus 7. rectangle
8. square
Step-by-step explanation:
Can someone please help me?
Answer: number 3
Step-by-step explanation:
Ms. M is measuring an angle with a protractor. What is the measurement of the angle?
Answer:
50°
Step-by-step explanation:
it's an acute angle so it couldn't be 130
a sub sandwich is 2.5 feet long and cut into 0.25foot pieces how many pieces are there in total?
? pieces
Answer:
10 pieces
Step-by-step explanation:
divide the total length by length of each pieces
2.5/0.25
Answer:
1.5 ÷ 0.25 = 6 pieces
Step-by-step explanation:
Answer this question please and thank you
Answer:
4
2x2x2
2^4. 16
2x2x2x2x2. 32
Answer:
Step-by-step explanation:
Please Help ASAP before midnight.
Write a unit rate for the situation.
$12.50 for 5 ounces
Also if you can, with your answer can you tell me how to find unit rate?
Answer:
$2.50 for 1 ounce
Step-by-step explanation:
I hope this helps
Answer:
The correct answer is $2.50.
Step-by-step explanation:
The unit rate is what we use to determine the price of a single unit, when something is sold in a group, as in this case 5 ounces.
We have been told that $ 12.50 is the price for 5 ounces, but what we want to know is how much 1 ounce costs.
To determine this, what we must do is divide the total price by the quantity of ounces, in order to determine the unit price:
12.50 / 5 = 2.50
In this way we can verify that the unit price of 5 ounces
BRAINLEST again PLZ HELP
Sue earns $6 an hour walking her neighbor's dog.
Part A: Create two variables and determine which is dependent and which is independent for this situation. (4 points)
Part B: List three ordered pairs to show the values of the two variables. (3 points)
Part C: Write an equation to represent the relationship between the two variables. (3 points)
(A) The independent variable is time because it is something that can be controlled and changed by the person walking the dog.
(B) Three ordered pairs are (1, 6), (2, 12), (0.5, 3).
(C) The equation is:
Money earned = 6t
What is an expression?In mathematics, an expression is a combination of numbers, variables, and operations that are grouped together to represent a mathematical statement.
Part A:
In this situation, the two variables are:
Independent variable: Time (in hours) spent walking the dog
Dependent variable: Amount of money earned (in dollars)
The independent variable is time because it is something that can be controlled and changed by the person walking the dog. The dependent variable is the amount of money earned because it is directly affected by the amount of time spent walking the dog.
Part B:
Here are three possible ordered pairs to show the values of the two variables:
(1, 6) - Sue earns $6 for walking the dog for 1 hour.
(2, 12) - Sue earns $12 for walking the dog for 2 hours.
(0.5, 3) - Sue earns $3 for walking the dog for half an hour (30 minutes).
Part C:
The relationship between the two variables can be represented by the equation:
Money earned = Hourly rate x Time spent walking
In this case, the hourly rate is $6 and the time spent walking is represented by the variable "t". Therefore, the equation is:
Money earned = 6t
where "t" is the time (in hours) spent walking the dog and "6t" is the amount of money (in dollars) earned for that time.
To know more about an expression follow
https://brainly.com/question/29981977
#SPJ2
Please help!
Answer each one of the equations using Algebraic equations. Please tell me whether it is an open or closed circle on the graph.
Solve each inequality and graph its solution...
1. m/3-3≤-6
2. -b-2>8
3. -4(3+n)>-32
4. n-3+4>7
5. 8(1-4x)>40
6. -(2+2m)-2>6
7. 4(8-2b)-2b≤32
Answer:
i dont know
Step-by-step explanation:
Christiana and Marlena opened their first savings accounts on the same day. Christiana opened her account with $55 and plans to deposit $10 every month. Marlena opened her account with $20 and plans to deposit $15 every month. After how many months will their two accounts have the same amount of money? What will that amount be?
The two accounts will have the same amount of money in BLANK months. And, the amount will be $ BLANK
Answer: it will take 4 months for the amount to be the same and the amount would be $95
Step-by-step explanation:
Let x represent the number if months it will take for the two accounts have the same amount of money.
Christiana opened her account with $55 and plans to deposit $10 every month. This means that the amount that in the account after x months would be
10x + 55
Marlena opened her account with $35 and plans to deposit $15 every month. This means that the amount that in the account after x months would be
15x + 35
For the amount in the accounts to be the same, the number of months would be
15x + 35 = 10x + 55
15x - 10x = 55 - 35
5x = 20
x = 20/5
x = 4
The amount would be
15 × 4 + 35
= 60 + 35
= $95
How many women out of every 1,000 women hold a Masters Degree? (BIASED OR UNBIASED)
Answer:13.1 Percent Have a Master's, Professional Degree or Doctorate. The educational level of American adults is on the rise as more college graduates go on to earn master's, professional and doctoral degrees
Step-by-step explanation:
The net of a square pyramid is shown below. What are the possible areas for a single face in this net? Check all that apply.
A. 11 square meters
B. 15 square meters
C. 24 square meters
D. 25 square meters
E. 30 square meters
Answer:
E. 30 square meters
Step-by-step explanation:
base times height
Answer:
E i guess
Step-by-step explanation:
PLS help ASAP this really urgent
Answer:
Skewed right.
Step-by-step explanation:
The graph is not symmetric because it's not an exact mirror of each side if you drew a line in the center. If the graph has highpoints on the left side and is leaning down to the right, it's skewed right. Same thing vice versa.
What is the distance between the two points shown on the coordinate plane below? { -4-,3 } and {4,3 } 6 units 1 unit 8 units 12 units
Answer:
The distance is 10
Step-by-step explanation:
PLEASE HELP FAST.
A submarine was descending at a rate of 300 feet per minute. If 0 represents sea level and distances below sea level are negative, which expression represents the location of the submarine after 4.5 minutes?
A. -304.5 ft.
B. -1350 ft.
C. 304.5 ft.
D. 1650 ft.
Answer:
B
Step-by-step explanation:
this is because -300 × 4.5 = is simply -1350
Please help I will reward brainliest
Answer:
7 1/2
Plz make me the brainliest
Sam found the area of a polygon. The area is 36 in2. Which of these polygons has an area of 36 in2? Explain your reasoning.
Solve this one-step equation
16 = 3 + j
Answer:
13 = j
Step-by-step explanation:
Subtract 3 from both sides to get the value of j.
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Find the area of the complex figure.
A figure has 8 sides; all sides meet at right angles. The left-most vertical side measures 31 meters. The lower most horizontal side measures 69 meters. The right-most vertical side measures 31 meters. The upper right horizontal side measures 23 meters. The middle horizontal side measures 23 meters. The upper middle left vertical side measures 12 meters.
Answer:
The answer would be 2691 meters.
Step-by-step explanation:
When looking at the figure, since you know the length of all of the sides you can easily cut it into three simpler rectangles by extending the line of 23 meters out to either side.
This gives us three rectangles by the measures of 23 by 12, 23 by 12, and 31 by 69.
In order to calculate area you do equation A=LxW
In this case, Area=(23) x (12)
This will get you the answer 276 meters.
Do this again for the other rectangle that measures 23 by 12, and add the two areas together.
This gives you 552 meters.
To find the area of the remaining triangle, once again do A=LxW
Area=(31) x (69)
This will give you 2139 meters.
To find the total area of the figure, add the two areas that we have already found out together,
522+2139
and you get your answer of 2691 meters.
Find the value of x.
Answer:
I think it is 70
Step-by-step explanation:
First, the total degrees for a Quadrilateral (a four-sided shape) is 360. Next, you add 40 + 130 + 80, which will get you 290 degrees. Lastly, you subtract 360-290, which will leave you with 70.
Hope this helps! :)
hey luvs help would be very much appreciated pls need it by the end of the day<3
Answer:
it eather abc or d
Step-by-step explanation:there is a 1 in 4 chan of getting it correct so 25 percent chance good luck i dont know it lol
Answer:
x - 2y > -4
............
Find the value of y.
Answer:
155 - 13 = 142 -90 = 52
Step-by-step explanation: