Answers
Hi there!
[tex]\large\boxed{(0, -1)}[/tex]
-2x + 8y = -8
2x - 3y = 3
We must eliminate a variable to solve. We can add the two equations to eliminate x because -2 + 2 = 0:
-2x + 8y = -8
2x - 3y = 3
-----------------
0x + 5y = -5
5y = -5
y = -1
Substitute this value of y into an equation to solve for x:
-2x + 8(-1) = -8
-2x -8 = -8
x = 0
Thus, the solution of this system is:
(0, -1)
Answer:
(0,-1)
Step-by-step explanation:
Hi there!
We are given the system:
-2x+8y=-8
2x-3y=3
there are 3 ways to solve systems of equations: graphing, substitution, and elimination
let's solve this system by elimination, which we will add the 2 equations together to clear one variable, solve for the other variable, and plug the value of that variable to solve for the variable that was cleared earlier.
add the two equations together (-2x and 2x clear out to equal 0 and we'll have only y left.)
-2x+8y=-8
+
2x - 3y= 3
_________
5y=-5
divide by 5 on both sides
y=-1
now substitute y as -1 into one of the equations to solve for x
for example, we can do the second equation
2x-3(-1)=3
multiply
2x+3=3
subtract 3 from both sides
2x=0
divide by 2
x=0
therefore the answer is x=0, y=-1. If you need it as a point, it's (0,-1)
Hope this helps! :)
Related Questions
4. The table shows a proportional relationship between x and y. For each value of sondy
Y
match it to the correct unit rote
in it's simplest form.
**3 and y27
** and y. 81
* 21 and y 128
x 14 and 84
* 12 and y = 36
* 15 and y 45
Answers
Answer:
21 and y128
Step-by-step explanation:
Answer:
i don't know the answer but i do have this book just look up answer key and the name of the book for any more answer X D
Step-by-step explanation:
big brain :)
can someone please help me :(((((((
Answers
Answer:
D
Step-by-step explanation:
Answer:
C) 3
Step-by-step explanation:
combine like terms
=> [tex]x^{2+3}[/tex] × [tex]y^{2+?}[/tex] = [tex]x^{5}y^{5}[/tex]
=> [tex]x^{5} y^{2+?}[/tex] = [tex]x^{5}y^{5}[/tex]
divide [tex]x^{5}[/tex] on both side to eliminate x
=> [tex]y^{2+?}[/tex] = [tex]y^{5}[/tex]
=> [tex]y^{2+3}[/tex] = [tex]y^{5}[/tex]
=> [tex]y^{5}[/tex] = [tex]y^{5}[/tex]
Darren has a wooden board that is Three-fifths of a meter long. He cuts the board into 3 equal parts. How long is each section of board?
Answers
Answer:
Each section of the board is 1/3 or 0.334(0.333333333333) of a meter
Step-by-step explanation:
3/5 divided by 3 is the equation we have to do.
3/5 divided by 3 is also equal to 3/5 times the reciprocal of 3 or 1/3
3/5 * 1/3
3*1 = 3
5*3 = 15
3/15 which can simplify to 1/3. (divide numerator and denominator by 3.)
Each section of the board is 1/3 or 0.334(0.333333333333) of a meter
[tex]3\sqrt{x} -6\sqrt{x} \\[/tex]
Answers
Answer:
-3√x
Step-by-step explanation:
(3-6) √x
= -3√x
. The temperature on Monday was −5∘C . By Tuesday the temperature rose to −2∘C. Find the change in temperature.
Answers
Answer: [tex]3^{\circ}C[/tex]
Step-by-step explanation:
Given
The temperature on Monday was [tex]-5^{\circ}C[/tex]
By Tuesday, it becomes [tex]-2^{\circ}C[/tex]
Change in temperature is the difference between the two temperatures.
[tex]\Rightarrow \Delta T=-2-(-5)\\\Rightarrow \Delta T=-2+5\\\Rightarrow \Delta T=3^{\circ}C[/tex]
Therefore, the change in temperature is [tex]3^{\circ}C[/tex].
What is the value of y?
Answers
Answer:
y =24
Step-by-step explanation:
The exterior angle is the sum of the opposite interior angles
y+18 + 3y -41 = y+49
Combine like terms
4y -23 = y+49
Subtract y from each side
4y -y -23 = y+49-y
3y -23 = 49
Add 23 to each side
3y -23+23 = 49 +23
3y = 72
Divide by 3
3y/3 = 72/3
y =24
Which equation in point-slope form contains the point (4, –1) and has slope 3?
y + 1 = 3(x – 4)
y – 4 = 3(x + 1)
y – 1 = 3(x + 4)
y + 4 = 3(x – 1)
Answers
Answer:
y+1=3(x-4)
Step-by-step explanation:
Hi there!
We are given a slope of 3 and a point (4,-1).
We need to find the equation of the line in point-slope form
Point-slope form is given as y-y1=m(x-x1), where m is the slope, and (x1,y1) is a point
We have all of the needed information to substitute into the formula
First, let's label the values of everything to avoid any confusion
m=3
x1=4
y1=-1
now substitute into the formula *remember, the formula has SUBTRACTION, and we have a NEGATIVE number, so we'll end up subtracting a negative*
y--1=3(x-4)
simplify
y+1=3(x-4)
That's it!
Hope this helps :)
is there anybody play free fire
Answers
Answer:
whats that
Step-by-step explanation:
is it a fun game
Answer:
no
Step-by-step explanation:
3x^2-12x-21=0 solve by completing the square
Answers
Answer:
x = 2 ± √11 (I believe)
Step-by-step explanation:
Decide which one of the following statements is
false.
a. Through any two distinct points there exists
exactly one line.
b. A line contains at least two points.
Three noncollinear points determine a plane.
d. Any three points lie on a distinct line.
Answers
d
Step-by-step explanation:
any three point line on a distinct line
i think....
use graph to answer question
Answers
Answer:
cos(θ) = 3/5
Step-by-step explanation:
We can think of this situation as a triangle rectangle (you can see it in the image below).
Here, we have a triangle rectangle with an angle θ, such that the adjacent cathetus to θ is 3 units long, and the cathetus opposite to θ is 4 units long.
Here we want to find cos(θ).
You should remember:
cos(θ) = (adjacent cathetus)/(hypotenuse)
We already know that the adjacent cathetus is equal to 3.
And for the hypotenuse, we can use the Pythagorean's theorem, which says that the sum of the squares of the cathetus is equal to the square of the hypotenuse, this is:
3^2 + 4^2 = H^2
We can solve this for H, to get:
H = √( 3^2 + 4^2) = √(9 + 16) = √25 = 5
The hypotenuse is 5 units long.
Then we have:
cos(θ) = (adjacent cathetus)/(hypotenuse)
cos(θ) = 3/5
Hello, can someone solve my addmaths question here? Btw, this is from the Differentiation topic (･ัω･ั)
The displacement of a squirrel running on a straight cable for t seconds is given by s(t)=t²-3t, where t≥0. By using first principles, find the velocity of the squirrel when t=5.
Answers
How to solve 48÷2(9+3)=?
Answers
48/2(12)
24(12) = 24 x 12 = 288
Answer:
288
Step-by-step explanation:
48÷2=24(9+3=12) =24×12=288
For each 7 mm of coloured fabric Gavyn uses to make his curtains, he also uses 1 cm of white
fabric. Express the amount of white fabric to coloured fabric as a ratio in its simplest form.
Answers
Answer:
7mm:10mm
Step-by-step explanation:
1cm =10mm
so 7:10
The median of the data 20, 30, 40, 10, 15, 25, 35
Answers
Answer:
25
Step-by-step explanation:
20, 30, 40, 10, 15, 25, 35
Put the data in order from smallest to largest
10,15,20, 25,30,35, 40
The median is the middle
There are 7 pieces of data so the 4th piece is in the middle
10,15,20, 25, 30,35, 40
25 is in the middle so it is the median
[tex]\huge\text{Hey there!}[/tex]
[tex]\bullet \large\textsf{ When you are finding your median you have to place the values from}\\\large\textsf{from descending (least) to ascending (greatest) and find the number}\\\large\textsf{in the center (middle) of that.}\\\\\\\\\bullet\large\textsf{ So, when you see or hear the word median in mathematics thing of it is}\\\large\textsf{asking \bf what is your middle number set}[/tex]
[tex]\large\textsf{Original set: 20, 30, 40, 10, 15, 25, 35}\\\\\\\\\large\textsf{Converting set: 10, 15, 20, 25, 30, 35, 40}\\\\\\\large\textsf{Make sure it is even on each of your sides to justify your result to this}\\\large\textsf{data set/question}\\\\\\\large\textsf{So, far it is even on both sides when you land on \bf number 25}\large\checkmark[/tex]
[tex]\boxed{\boxed{\large\textsf{Answer: \huge \bf 25}}}\huge\checkmark[/tex]
[tex]\large\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Which of the following best describes the graph below?
A. It is not a function.
B. It is a many-to-one function.
C. It is a function, but it is not one to one.
D. It is a one-to-one function.
Answers
Answer: b
Step-by-step explanation:
becuase
Answer:
D. It is a one-to-one function.
Step-by-step explanation:
It passes the vertical line test so it is a function
It passes the horizontal line test so it is one-to-one
A construction crew has two 100ft. beams with which to form the walls of a tent that needs to be 80ft. high. At what angle do they need to place the beams into the ground in order to form their tent? Round your answer to the nearest tenth of a degree.
A. 14.0 degrees
B. 36.9 degrees
C. 38.7 degrees
D. 53.1 degrees
Answers
x=sin^-1(80/100)
x=53.1
Answer is D
PlZ HELP !!!! if you can AWNSER either one if those please
Answers
Problem 1
The two angles 6x and 30 are vertical angles, so they are congruent or the same in measure.
6x = 30
x = 30/6
x = 5 is the answer
====================================================
Problem 2
The two angles form a straight angle which is 180 degrees. We consider them a linear pair (since they are adjacent and supplementary).
So,
5x+(3x+12) = 180
8x+12 = 180
8x = 180-12
8x = 168
x = 168/8
x = 21 is the answer
What is m∠H? (Must give Explanation)
Answers
Answer:
95°
Step-by-step explanation:
(x+49)+(x+59)=180
2x+108=180
2x=72
x=36
36+59=95
!NO LINKS!
(ik im being a bother but like im not very smart so ️)
PLEASE HELP!!
Answers
Answer:
190 mm^2
Step-by-step explanation:
Surface area of a rectangular prism=
2*length*width+2*width*height+2*length*height
2*9*2+2*2*7+2*9*7=190
190mm^2
Answer:
Answer is in the picture
2 is Length
9 is width
and 7 is height
Write and solve the equation to find the value of x and the missing angle measures.
Answers
Answer:
x = 8
The missing measures are 85 degrees
Step-by-step explanation:
Since 9x + 13 and 11x - 3 are on opposite sides, they are equal, so
9x + 13 = 11x - 3
Subtract 13 from both sides:
9x = 11x - 16
Subtract 11x from both sides:
-2x = -16
Divide both sides by -2:
x = 8
The angle measures are
9(8) + 13 = 72 + 13 = 85
11(8) - 3 = 88 - 3 = 85
Answer:
9x+13 = 11x-3
x = 8
The angles are 85
Step-by-step explanation:
The angles are vertical angles so they are equal
9x+13 = 11x-3
Subtract 9x from each side
9x+13 -9x = 11x-9x-3
13 = 2x-3
Add 3 to each side
13+3 = 2x-3+3
16 =2x
Divide by 2
16/2 = 2x/2
8 =x
11x-3 = 11(8) -3 = 88-3 = 85
Sam will place three of his eight model trucks on a shelf. In how many different orders can you please three model trucks on the shelf
Answers
Answer: 336 ways
Step-by-step explanation:
Given
Sam has 8 models and he needs to place 3 on a shelf
3 models can be selected out of 8 in [tex]^8C_3[/tex] ways
It can further be arranged among themselves in [tex]3![/tex] ways
Therefore, total number of ways are
[tex]\Rightarrow 3!\times ^8C_3\\\\\Rightarrow 3!\times \dfrac{8!}{3!5!}\\\\\Rightarrow 8\times 7\times 6=336\ \text{ways}[/tex]
the ratio of the ages of kapil and ramu is 4:5. After five years, the sum of their ages is 46 years. find the present ages
Answers
Answer:
Step-by-step explanation:
Let the age of Kapil is 4x and that of Ramu is 5x.
After 5 years,
Kapil's age = 4x+5
Ramu's age = 5x+5
ATQ,
4x+5+5x+5 = 46
9x+10 = 46
9x = 36
x = 4
Present age of Kapil = 4x = 4(4) = 16 years
Present age of Ramu = 5x = 5(4) = 20 years
A stock loses half its value each week. If the stock started at $125, what is it worth after 4 weeks?
Answers
Answer: 7.81
The formula is
y = 125* (1/2)^4
y = 125 / 16
y = 7.81
So at the end of the 4th week, the stock is worth only 7.81 dollars.
If that is not the motive and the first week doesn't count then the formula changes to...
y = 125 * (1/2)^(n-1)
y = 125 * (1/2)^3
y = 15.625 could be the other answer if you looked at it in that perspective
However, I would go with 7.81 as the answer.
Hope I helped :)
Robert ride his bike from home to school and back 3 days a week. He travels a total of 7.14 km in those three days what is the total distance travels he ride his bike 5 days a week
Answers
Answer:
11.9 km
Step-by-step explanation:
Distance travelled in 1 day = 7.14 / 3 = 2.38
distance he travels in 5 days = Distance travelled in 1 day x 5 = 11.9 km
Mrs. Chin paid a 20 percent tip on the bill for lunch. Percents Total 20% 20% 20% 20% 20% 100% $2.75 $2.75 $2.75 $2.75 $2.75 If the tip amount was $2.75, what was the bill for lunch before the tip was added to it?
Answers
Answer: $13.75
Step-by-step explanation:
Since Mrs. Chin paid a 20 percent tip on the bill for lunch and the tip amount was $2.75, then the bill for lunch before the tip was added to it will be calculated thus:
Let the bill for lunch be represented by x. Therefore,
20% of x = $2.75
20/100 × x = $2.75
0.2 × x = $2.75
0.2x = $2.75
x = $2.75/0.2
x = $13.75
Therefore, the bill is $13.75 before the too was added.
A basket ball team won 10 games and lost 15 games, what is the ratio of number of wins to
the total number of games played?
Answers
Answer:
10:25
Step-by-step explanation:
10 is the total of won games
10=won
+15=lost
---------------
25 games
therefore 10 is to 25
Please help me ASAP!!
Answers
Answer:
its b The angles need to add up to 90 degrees and this fits the formula
Answer:
B is the right answer
Step-by-step explanation:
Hope this helps you!!
The school events committee is planning to buy a banner and some helium balloons for graduation night. A store charges them $35 for the banner and $3 for each helium balloon. If the committee has at most $125 to spend, how many helium balloons can they buy?
Answers
Answer:
30 balloons
Step-by-step explanation:
$125 - $35 = $90
$90 ÷ $3 = 30
An ice cream shop has a sign in their window that says, "We sell 12,000 scoops per month." The number of scoops has been rounded. Which could be the number of scoops sold if they rounded to the nearest thousand? Choose all answers that apply
Answers
Answer:
B - 12,111
C - 11,589
Step-by-step explanation:
Here are the options
A - 10, 999
B - 12,111
C - 11,589
In order to round off to the nearest thousand, look at the hundred figure, if the number is greater or equal to 5, add 1 to the thousand figure. If this is not the case, add zero. Replace all the figures before the thousand figure with zero. i.e. the hundred ten, unit
Rounding off 10,999 to the nearest thousand is 11,000
the hundred figure is greater than 5, so one is added to the thousand figure. The
Rounding off 12,111 to the nearest thousand is 12,000
the hundred figure is less than 5, so zero is added to the thousand figure.
Rounding off 11,589 to the nearest thousand is 12,000
the hundred figure is equal to 5, so one is added to the thousand figure.