x - 4y = 1 and 3x + 2y = -11. What is the solution to the system of equations?
Answers
Answer:
x=-3 y=-1
Step-by-step explanation:
The solution is
The value of x = -3
The value of y = -1
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the first equation be = A
Now , the value of A is
x - 4y = 1 be equation (1)
Let the first equation be = B
Now , the value of B is
3x + 2y = -11 be equation (2)
Now , on simplifying both equations , we get
Multiply equation (1) by 3 , we get
3x - 12y = 3 be equation (3)
Subtracting equation (2) from equation (3) , we get
-12y - 2y = 3 - ( -11 )
-14y = 14
Divide by -14 on both sides of the equation , we get
y = -1
So , the value of y = -1
Substitute the value of y in equation (1) , we get
x - 4y = 1
x - 4 ( -1 ) = 1
x + 4 = 1
Subtracting 4 on both sides of the equation , we get
x = -3
So , the value of x = -3
Hence , the value of x is -3 and value of y is -1
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Related Questions
Which values are solutions of the inequality 5 < y - 8? 8, 9, 13, 15, and 20. I could really use some help! :)
Answers
Answer:
15 and 20
Step-by-step explanation:
8-8 is not greater than 5
9-8 is not greater
13 -8 is 5, but not greater
Skye needs 50 g of sugar to make 30 biscuits.
She also needs
three times as much flour as sugar
two times as much butter as sugar
Skye is going to make 120 biscuits.
(a) Work out the amount of flour she needs.
Answers
Answer:600g
Step-by-step explanation: 50x3=150 150x4=600 since 30x4=120
4) -3x – 2y = -17
9x + 2y = 23
A) (1,7)
B) (10, 7)
C) (5, 7) D) (-7,7)
Answers
Answer:
A). (1, 7)
Step-by-step explanation:
-3x – 2y = -17
9x + 2y = 23
____________+
6x = 6
x = 6/6
x = 1
9x + 2y = 23
9(1) + 2y = 23
9 + 2y = 23
2y = 23 - 9
2y = 14
y = 14/2
y = 7
On a platter of chicken wings they are mild wings and hot wings in a representative sample of 10 chicken wings there are 5 mild wings if the platter has 90 chicken wings estimate the number of mild wings on the platter
Answers
Answer:
30 mild wings
Step-by-step explanation:
An iPad that was originally on sale for $1075 is now on sale for $ 623.50. What is the percent markdown( percent decrease)?
Answers
Explanation : you would have to set up a portion table were the sale amount (623.50) would go and the original/total price would go (1075$) and since you are trying to find the % you would put x over 100 , and then cross multiply while it’s set up so 623.50 times 100 =62,350 and you would take the answer and divide it by 1075x which would get you to 58 and that would equal x .
3 days 22 hours equals how many hours
Answers
Answer:
94 hoursStep-by-step explanation:
3 days = 3×24 =72total hours= 72 + 22 = 94Enter an equation for the word sentence. Use the variable n.
The sum of a number and 4.4 is 8.1.
Answers
Answer:
[tex]n + 4.4 = 8.1[/tex]
Step-by-step explanation:
We know we have to write an algebraic equation for the sentence - so "translate" the phrases of the sentence step-by-step. Let the unknown number be represented by the variable n, as the question states.
Start with the phrase "the sum of a number and 4.4." A sum comes as a result of adding numbers together - therefore the first part of the equation must be [tex]n + 4.4[/tex].
Next, the sentence says "is 8.1." The "is" indicates that the expression we just wrote equals something, so that number must be 8.1. Therefore, the whole equation must be [tex]n + 4.4 = 8.1[/tex].
HELP ASAP!! What is angle 1 called??
Answers
PLLLLLLZZZZ HELP IT IS DUE NOW
Answers
Answer:
(1.5,-4) top left (-1.5,4)
Step-by-step explanation:
The point lies in the bottom right at (1.5,-4), and if you reflcting it across the x and y axis the point is going to be in the oppisite quadrant and oppisite of the original point. example if the coordinates are X value, reflecting them will make it -x, making positves negatives and vice versa.
P. S. you should start reviewing your school work for a test like a week before to have enough time to review it all.
help PLZZ FAST
4 The side lengths of a square are each 5p. By adding 1 to the length and subtracting 1 from the width, a rectangle is made. What is the area of the rectangle?
4p2-2
0 25p2 + 1
25p2 - 10p - 1
25p - 1
Answers
its 25p^2-1
Step-by-step explanation:
the two sides are (5p+1) and (5p-1) so just multiply them
Question
Find the equation of a line that contains the points (0, -6) and (-2,-5).
Answers
Answer:
01.4
Step-by-step explanation:
2. Write and solve an equation for each situation.
Justin and Marcus went for a bike ride. Together they rode a total of 28.6 miles. If Justin rode 14.4
miles, how many miles (m) did Marcus ride? * help plz
Answers
Answer:
14.2 miles
Step-by-step explanation:
14.4 + m = 28.6 is your equation
Then subtract 14.4 from both sides
m = 14.2
The store plans to purchase the uniforms and hand out 5 uniforms to every employee, one for each day of the week uniforms come in packs of 8, and the store plans to purchase 56 packs of uniforms. How many employees can store give uniforms to?
Will the store have any uniforms left over?
Answers
100 points and brainly please help find vertical and horizontal asymptotes (must show work)
f(x) = 2x2+4/x^2 +5x+6
Answers
Answer:
It would be very hard to graph this equation correctly as without factoring both the numerator and denominator it would be hard to account for all of the information.
x2−5x+6x2−2x−3x−6(x−2)(x−3)
Step-by-step explanation:
Answer:
Step-by-step explanation:
Note that you need to use parentheses around the numerator and around the denominator: f(x) = (2x^2+4)/(x^2+5x+6)
Division by zero is undefined, so x≠-2 and x≠-3.
Vertical asymptotes: x=-2, and x=-3
As x approaches ∞, f(x) approaches 2.
As x approaches -∞, f(x) approaches 2.
Horizontal asymptote: y=2
Chad's bedroom floor is 18 feet long and 13 feet wide. He has an area rug on his floor that is 2 feet long and 8 feet wide.
Which statement tells how to find the amount of the floor that is not covered by the rug? Select all that apply.
A Add 18 × 13 and 2 × 8.
B Add 18 + 13 + 2 + 8.
C Subtract 18 × 13 from 2 × 8.
D Subtract 2 × 8 from 18 × 13.
E Subtract 16 from 18 × 13.
F Subtract 13 × 8 from 18 × 2.
Answers
9514 1404 393
Answer:
D Subtract 2 × 8 from 18 × 13.E Subtract 16 from 18 × 13.Step-by-step explanation:
To find the area not covered, the rug area must be subtracted from the floor area. Each of those areas is the product of their respective dimensions. The statements describing that subtraction are ...
D Subtract 2 × 8 from 18 × 13.
E Subtract 16 from 18 × 13.
Find the solution to the system of equations
Answers
Answer:
(6,30)
Step-by-step explanation:
This is where the two lines intersect. Also, we can verify our answer by plugging 6 in for x and 30 in for y.
- Identify a pair of alternate exterior angles.
1
2
8
3
3
7
4
6
3
O <3 and 24
O_1 and 2
O_1 and 26
OL2 and 26
Answers
Answer:
should be angle 2 and angle 6
Explain your answer !!
Have a great day
Will give brainlst
Answers
Answer:
1) Peru 2: Columbia 3) Brazil 4) Venezuela
Step-by-step explanation:
i found my answer by looking at which countries have the LEAST oil. Those are the countries who will be most impacted if more people use there oil. I hope this helps :)
Pick the correct compound inequality that represent "All real numbers that
are greater than -6 but less than 6"*
-6 X 36
6 sxs-6
-6
0 -6
Answers
The correct compound inequality which represents the given statement is -6 < x < 6.
What are Compound Inequalities?Compound inequalities are inequalities which are formed by combining two simple inequalities.
For example, 3 < x < 6 is a compound inequality which is a combination of x > 3 and x < 6.
Given statement is,
All real numbers that are greater than -6 but less than 6.
Let x represents the numbers satisfying the inequality.
All real numbers greater than -6 can be expressed as x > -6.
All real numbers that are less than 6 can be expressed as x < 6.
These two inequalities has to be combined.
x > -6 and x < 6
-6 < x < 6, which is the compound inequality.
Hence the compound inequality is -6 < x < 6.
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PLS HELP GIVING BRAINLESS TO CORRECT PERSON PLS HELP ASAP
Answers
Answer:
Correct Answer - It shows the unit rate of the graph in miles per hour.
Step-by-step explanation:
hope this helps
What is 5 divided by 1/8?
Answers
Answer: 50
Step-by-step explanation:
Its 40
Step-by-step explanation
Solve.
5t ≤ –15
a. t ≤ 3
b. t ≥ 3
c. t ≤ –3
d. t ≥ –3
Answers
Answer:
c. t ≤ –3
Step-by-step explanation:
If you have 9/10 of a pound of granola, how many 1/5 pound bags can you fill?
Answers
you can fill 4 1/2 bags
but why u got so much granola lol
Answer:
4 full bags and 1/2 a bag
Step-by-step explanation:
Function C gives the cost, in dollars, of buying n apples. What does this equation represent in this situation?
C(5)=4.50
help pls
Answers
Answer:
The cost of 5 apples.
Step-by-step explanation:
Typically the equation would be written as C(n) = 4.50
Since 5 is where 'n' should be, then that means the number of apples in the equation is five.
C(5) = 4.50
Means, that 5 apples cost $4.50
hi to u famous girl !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
YEET
Step-by-step explanation:
Answer:kuktf
Step-by-step explanation:
oh;f' 'h
'd5r6sxfh;jhp
Add 3/10+ 33/100+ 1+ 7/10 ( in fraction form) (this is 4th grade not middle school) please help
Answers
Step-by-step explanation:
Please refer to the attachment
1. Circle the figure you would use to make the Escher‐like tessellation given,
Answers
Answer:
C.
Step-by-step explanation:
Answer:
I got C.
Step-by-step explanation:
(It's on my math paper)
11 more than x is less than. 3 (please)
Answers
Answer:
(11+x)-3
Step-by-step explanation:
11 more than x is another way of saying 11+x
And "less than 3" means subtracting 3 from the terms
So if you put that together it would be
(11+x) -3
PLEASE HELP, The diameter of a semicircle is 2 meters. What is the semicircle radius
Answers
Answer:
Step-by-step explanation:
d= 2r
therefore the radius is 1
A 5-pound bag of red onions costs $3.90. What is the unit price?
per pound
Answers
I hoped that this helped
Answer:
OK, I love these questions. The way to get the answer is always remember this formula- (PRICE DIVIDED BY QUANTITY). In this case, the price for a 5 pound bag of onions costs 3.99. So, to find the unit price per pound, all you need to do is divide 3.99 by 5. If you do the math (3.99/5), you'll get the answer of 79 cents per pound. If your asked to round, the answer would be 80 cents per pound.