Answers
Answer:
3x = 14
Step-by-step explanation:
Add the two equations.
5x + (-2x) = 3x
(-y) + y = 0
6 + 8 = 14
3x = 14.
Step-by-step explanation:
5x - y = 6 and -2x + y = 8
1/ 5x - y = 6
=> y = 5x - 6
2/ -2x + y = 8
Substitute 1/ into 2/ we will have:
-2x + (5x - 6) = 8
=> -2x + 5x - 6 = 8
=> 3x = 14
=> x = [tex]\frac{14}{3}[/tex] <=> y = [tex]\frac{52}{3}[/tex]
- However, the question asked for the final equation when adding 5x - y = 6 and -2x + y = 8 => The correct answer will be: 3x = 14
Related Questions
Match the quadratic equations with the correct zeros
Answers
Answer:
Step-by-step explanation:
By zero product property,
Zeros of the given quadratic equation,
m² - 121 = 0
m² - (11)² = 0
(m + 11)(m - 11) = 0
m = -11. 11
Option C is the answer.
9x² - 3x - 2 = 0
9x² - 6x + 3x - 2 = 0
3x(3x - 2) + 1(3x - 2) = 0
(3x + 1)(3x - 2) = 0
x = [tex]-\frac{1}{3}, \frac{2}{3}[/tex]
Option B is the answer.
4x² + 2x - 6 = 0
2x² + x - 3 = 0
2x² + 3x - 2x - 3 = 0
x(2x + 3) - 1(2x + 3) = 0
(x - 1)(2x + 3) = 0
x = [tex]-\frac{3}{2},1[/tex]
Option A is the answer.
The area of a room is 28 sq.cm.If the length of the room was 1m less and its breadth was 2m more than it would be in the shape of a square.Find the length and breadth of the room?
Answers
Answer:
Length = 7cm
Breadth = 4cm
Step-by-step explanation:
The shape of the room is original my in a square shape
Area of a rectangle = Length × Breadth
Area = 28 cm²
Length = L - 1
Breadth = B + 2
Hence
28 = (L - 1)(B + 2)
b(b + 3) = 28
b² + 3b = 28
b² + 3b - 28 = 0
b² +7b - 4b - 28 = 0
What is the volume of this cylinder?
Use 3.14 and round your answer to the nearest hundredth.
14 mm
7 mm
Answers
4300( 4308.08)
Your welcome
So all you have to do is multiply the radius by itself. So in this case 14x14=196.
So then multiply that by pi aka 3.14. So 196x3.14=615.44 then multiply that by your height in this case its 7 So 615.44x7=4308.08
What are the coordinates of the hole in the graph of the function f(x)?
f(x)=x2+3x−28x+7
Answers
9514 1404 393
Answer:
(-7, -11)
Step-by-step explanation:
[tex]\dfrac{x^2+3x-28}{x+7}=\dfrac{(x+7)(x-4)}{x+7}=x-4\qquad x\ne-7[/tex]
The hole is at x=-7. The left- and right-limits at that point are -7-4 = -11. So, the coordinates of the hole are (-7, -11).
For an upcoming election, 500 registered voters were surveyed on a tax increase. 43% were for a tax increase and 51% were against a tax increase. The margin of error was 6%. What is an accurate conclusion from the poll?
a. Against a tax increase will win because it is above 50%.
b. The nal result is undecided because of the margin of error.
c. The nal result is undecided because percentages do not add up to 100%.
d. Against a tax increase will win because the margin of error will increase their percentage.
Answers
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answers
Answer:
D. (8,0), (4,0)
Step-by-step explanation:
they both on tha line
A store charges 17 1 2 % GCT on all sales. What is the total cost of a 3 shirts if 1 is marked at J$1200?
Answers
understand the difference between cash price and hire purchase
be able to calculate percentage increase and decrease in price
be able to calculate GCT in context.
You are familiar with buying items in shops and markets but often, when buying expensive goods, different methods of payment are available.
You might be offered a hire purchase agreement: you would pay a deposit and then pay the remainder of the cost of the item in a specified number of (often monthly) instalments. In a sale, the cash price might be reduced.
You need to remember that most goods are subject to a government sales tax, often referred to as VAT (value added tax). In Jamaica this government tax is GCT (general consumption tax) which is currently charged at 16
1
2
%.
What is the area in square meters of the trapezoid below
Answers
Answer:
69.3 meters squared
Step-by-step explanation:
1) Think of the shape as being divided into two sections (a rectangle and a triangle)
2) multiply 5.2 times 7 to find the area of the rectangle (36.4)
3) subtract 5.2 from 14.6 to find the base of the triangle (9.4)
4) multiply 9.4 by the height of the triangle 7 (65.8)
5) divide 65.8 by two because a triangle is half of the needed rectangle
6) this leaves 32.9
7) add 32.9 and 36.4 to get your final answer of 69.3 meters squared
hope this helps :)
can someone help please what is the answer?
Answers
[tex]\frac{1}{2}q = - 24\\q = - 24 * 2\\q = - 48[/tex]
Answer:
The answer is q= -48
Step-by-step explanation:
The steps to solve are:
Combine multiplied terms into a single fraction.
Next, multiply by one.
Then, eliminate common denominators.
After that, cancel multiplied terms that are in the denominator.
Finally multiply the numbers.
answer this MATH question thank you :)
Answers
Answer:
K
Step-by-step explanation:
By altering the initial height, you change the h-intercept. That will affect the maximum height and the t-intercept.
Answer: K
Answer:
post a new question so we can talk
Step-by-step explanation:
Write this expression in simplest form.
Answers
Answer:
[tex]7c\sqrt23d[/tex]
Question 18 of 25
In a group of 40 students, the probability that at most 15 of them like to hike
is 47%. What is the probability that at least 16 of them like to hike?
A. 44%
B. 38%
C. 62%
D. 53%
Answers
Answer:
D 53 is the answer I just took the test
Answer: 53
Step-by-step explanation: taking the test
solve for X.
Should be a decimal.
Answers
Answer : 29.83287
Question 1 of 10
Which rays form the sides of
C
E
O A. DC
B. CE
C. CD
D. DE
E. ED
F. EC
Answers
Answer:
Ray DC and Ray DE
-4(3x+2)-5x what is the answer to this question?
Answers
Answer:
Step-by-step explanation:
-4(3x+2)-5x
-12x - 8 - 5x
Solving like terms
-17x - 8
If you want to find the value of x then
-17x - 8 = 0
-17x = 8
x = 8/-17
Answer: -17x - 8
Step-by-step explanation:
First, we distribute the -4 into the parenthesis:
-4(3x + 2) - 5x
-12x - 8 - 5x
Now, we combine like terms:
-12x - 8 - 5x
-17x - 8
You can't simplify this expression any further because of the variable, so this is your final answer :)
for the following question, find the volume of the given prism. round to the nearest tenth if necessary
Answers
Answer:
D) 269.3
Step-by-step explanation:
Rectangular prism volume:
V = whl
V = (12.1)(5.3)(4.2)
V = 269.346
Anita needs to construct ten cones for a class project. How many square feet of material will she need? Use 3.14 for π. Enter your answer in the box. Th radius is 6 ft and the height is 12 ft.
Answers
Assuming that Anita needs hollow right circular cones, we are solving for its lateral surface area, which is given by the formula πr√ (h²+r²), where r is the radius and h is the height.
r = 6 ft / 2 = 3 ft
Solving for the lateral surface area of one cone:
LSA = (3.14) (3) [√ (12²+3²) ] = 116.52 sq ft.
Since she needs 10 cones:
10 * 116.52 sq. ft = 1,165.2 sq ft.
She will need 1,165.2 sq ft of material.
Hope this helps you :)
Please help me
GEOMETRY
And please let me know how you solved it thank u!
Answers
Answer:
x = 6
Step-by-step explanation:
In the picture :) Hope that helped!
The half-life of a radioactive kind of thorium is 2 years. How much will be left after 4 years, if
you start with 992 grams of it?
grams
Answers
Answer:
ZOOM PLZ COME WE R BORED
MEETING ID 798 4170 2552
PASSWORD:XCNeV3
Step-by-step explanation:
Um vendedor de frutas saiu com 372 bananas se eu voltar para casa trazer 129 bananas quantas bananas ele vendeu operação e resposta?
Answers
Responder:
243
Explicação passo a passo:
Dado que :
Número inicial de bananas = 272
Número de bananas devolvidas com = 129
Para obter o número de bananas vendidas, usamos a operação de subtração do número de bananas com que ela saiu de casa e do número de bananas com que voltou.
Portanto, número de bananas vendidas:
372 - 129 = 243
What is the area of this figure?
Answers
The answer to this problem is A) 760.27 in^2
(2x-4)^2 please solve with steps
Answers
Answer
what is the equation equal to
Step-by-step explanation:
If thats the only thing they give it is (2x-4)(2x-4)
Answer:
4x - 16
Step-by-step explanation:
2x x 2x = 4x (2x^2)
4 x 4 = 16 (4^2)
You had to distribute that ^2.
Keep the SUBTRACTION sign.
therefore your answer is:
4x - 16
Find the whole volume of the triangular pyramid to the nearest whole number
Answers
Answer:
The volume of the triangular pyramid to the nearest whole number is 924 inches cube
Find the factors of x3−7x−6
(x+3)(x+2)(x−1)
(x−3)(x+2)(x+1)
(x−4)(x−2)(x+1)
(x−6)(x−1)(x+1)
Answers
Answer:
B. (x−3)(x+2)(x+1)Step-by-step explanation:
Possible options are 1 or 2 as each has odd number of negative coefficients.
Open parenthesis and verify:
(x+3)(x+2)(x−1) = ³ + 4x² + x - 6, false(x−3)(x+2)(x+1) = x³ - 7x - 6, true
help me asap please, i really need it.
THERE ARE TWO ANSWERS FOR EACH QUESTION, PLEASE PROVIDE BOTH ANSWERS FOR EACH QUESTION TO EARN FULL CREDIT. BE SURE TO NUMBER YOUR ANSWERS.
Answers
cos 48° = b / √(a²+b²)
tan 48° = a/b
sin 48° = a / √(a²+b²)
I need help!!! Can someone answer this? It’s very simple!
Answers
Answer: The greatest common factor od 12 and 18 is 6
Step-by-step explanation:
Write this number in standard form.
Seven hundred nine
thousand eight hundred
thirty-one
Answers
Answer:
709,831
Step-by-step explanation:
709,831
Answer:
709831
Explanation
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answers
Answer:
C
Step-by-step explanation:
We can cross A and B off cause it involves multiplication
We can cross D off cause 3 + 3 + 3 = 9, not 27
Have a good day! Can u mark me as brainlist? :)
which of the following values are in the range of the function graphed below? check all that apply.
A. -2
B. 2
C. 3
D. 5
E. 1
Answers
Answer:
1, 2 and 3
Step-by-step explanation:
A function has the rule y = -2x + 11. Which of the following ordered pairs represents an input of 4 and its output?
(4, 3.5)
(4, 3)
(3.5, 4)
(3, 4)
please answer quickly
Answers
Answer:
(4, 3).
Step-by-step explanation:
Input 4 (x = 4):-
y = -2(4) + 11
= -8 + 11
= 3.