Answers
Answer:
Option D: Multiply the second equation by 4 and then add the result to the first equation is the correct answer.
Step-by-step explanation:
Given that:
x-4y = 2
2x+y = 12
For elimination, one of the variable is eliminated.
In this system,
we can either multiplying the first equation by 2 or second equation by 4.
Then we can add the equations.
By multiplying the second equation with 4 and then adding both equations, we can eliminate the variable y.
4(2x+y=12)
8x+4y=48
By adding
(x-4y)+(8x+4y)=2+48
7x=48
Hence,
Option D: Multiply the second equation by 4 and then add the result to the first equation is the correct answer.
Related Questions
i’m dvmb i’ll give brainliest
Answers
Answer:
b (-3,3)
Step-by-step explanation:
it's where the two lines intersect
hope this helps
The crew on a ship is made up of 8 men. The rest are women. 25% of the crew are men. How many people are on the crew?
Answers
Answer:
32 people are on the crew
Step-by-step explanation:
If 8 people equal 25%, you can multiply it by 4 to get 100%. 24 people are women and 8 are men on the crew.
How many liters of water should a chemist mix with 10 liters of a 24% sodium solution to get an 8% sodium solution?
Answers
Answer:
Step-by-step explanation:
How many liters of water should a chemist mix with 10 liters of a 24% sodium solution to get an 8% sodium solution?
So to line it up, I have:
All L liters.
10*24 + L*0 = (10+L)*10 ******** You said 8%
10*24 + L*0 = (10+L)*8
240 = 80 + 8L
L = 20 liters
Hasta que lo consigamos, lo conseguiré
Hasta que lo consigamos
Hasta que lo consigamos, lo conseguiré
Hasta que lo consigamos
Dices que todo lo que necesitas es amor constante
Cuando lo intento, juro que nunca es suficiente, lo arruiné
Tal vez esto de aquí no es para nosotros
Cariño, me dejas ir y yo te aparto
Lo dejo ir, no vas a tener eso
Lo hacemos como estrellas de rock
Sexin 'en mi habitación de hotel, y estamos tan ruidosos
Más alto que una nube de humo
Sombras al hacer 95 con la parte superior hacia abajo
Puedo sonar loco
Porque vamos de un lado a otro
Un minuto te odio, luego te amo
Así es como es
Which list contains three multiples of 8?
A.
32, 36, 48
B.
8, 18, 28
C.
80, 84, 88
D.
48, 56, 72
Answers
Answer:
D
Step-by-step explanation:
Answer:
The answer is D. 48,56,and 72 are all multiples of D
For a chemistry experiment 3/4 of an ounce of a certain chemical is needed. if a bottle of the chemical holds 96 ounces, how many times can the experiment be completed?
Answers
Answer:
The experiment can be completed 128 times from 96 ounce bottle of chemical.
Step-by-step explanation:
Given that:
Ounces of chemical hold by bottle = 96 ounces
Chemical used for experiment = 3/4 of an ounce = 0.75 ounce
Number of experiments = [tex]\frac{Chemical\ in\ bottle}{Chemical\ used\ for\ experiment}}[/tex]
Number of experiments = [tex]\frac{96}{0.75}[/tex]
Number of experiments = 128
Hence,
The experiment can be completed 128 times from 96 ounce bottle of chemical.
pls and pls what is the easy way to solve maths problems or how can I solve maths problems with ease?
Answers
Answer:
Ok here is my pro tip:
Step-by-step explanation:
Use both halfs of you brain at the same time, causing you to passout and have your head hit the keyboard, giving you the correct answer
Find the area of the rhombus.
Answers
Answer:
Area = 90
Equation:
See attached image for equation.
What is the line of this slop :( ?
Answers
Find two points on the line then do the slope formula. That’s how I got my answer. Hope this helps!
of liters of water are enough to water of the plants in the house, how much water is necessary to water all the plants in the house? Write a multiplication equation and a division equation for the situation, then answer the question. Show your reasoning.
Answers
Answer:
2/5 x ? = 4/3?
4/3 / 2/5= ?
Quick method is quick change flip, Change the division sign into multiplication and switch the values in the denominator and numerator of the second fractiom
4/3 x 5/2 = 20/6
simplify to 10/3
x or ? = 10/3
written as a mixed number is is 3 1/3
Step-by-step explanation:
ollie had 43 on the day before his birthday after he received some money for his birthday he had 68 how much money ollie received for his birthday
Answers
Answer:
Step-by-step explanation:43₊68=111
1.4t - 0.4(t - 3.1) = 5.8
Answers
Question 18
Incorrect
2 tries left. Please try again.
Nicholas broke his leg and has to wear a cast for a set number of days. Nicholas has been wearing the cast for 45 days, or 90% of the required
time. How many total days does Nicholas have to wear the cast?
days
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Answers
Answer:
50%
Step-by-step explanation:
Melissa is making clothes for her dolls. She has 7/8 yard of fabric. Each doll shirt requires 2/7 of a yard of fabric. How many whole shirts can she make for her dolls?
Answers
Answer:
She can make three shirts and will have 7/56 left.
Step-by-step explanation:
49/56-14/56=35/56 (one shirt) 35/56-14/56=21/56 (two shirts) 21/56-14/56=7/56 (three shirts)
Use the figure of triangles AABE and AFCG along with the information below to answer the following questions,
Given: AC = EG
Prove: AE = CG
B
D
A
C
E
G
Statement
Reason
1. AC = EG
2. CE = CE
2.
3. AC + CE = CE + EG 3
4. AC + CE = AE
4
CE + EG = CG
5. AE = CG
What is the reason for Statement 2?
Use the figure to answer the question.
OA.
Reflexive Property
B.
Addition Property of Equality
Ос.
Given
OD
Segment addition
Answers
Answer:
Answer attached
Step-by-step explanation:
What is 6x + 21 + 14
Plz fasttttttttttttt
Answers
Answer:
That would be 6x+35.
Step-by-step explanation:
Given that you do not provide a way to determine the value of x, we cannot simply 6x, but we can simplify 21+14 by solving it and getting 35, resulting in the expression 6x+35.
HELP, WILL GIVE 100 POINTS
Which sum or product is rational? Choose all that apply.
A.
−12+3
B.
(7–√)(34)
C.
2.7 + 45
D.
(78)(9–√)
E.
4 + 5–√
Answers
Answer:
It's A trust me! :D
Step-by-step explanation:
Select the correct answer.
Which graph represents the solution to this inequality?
-(121 + 8) = -21 + 11
-15 -13
-11
-9
-7
-5
OA
-17
OB.
- 17
Oct
-17
-15
-13
-9
-75
- 15 -13
- 11
9
-7 5
OD. +
-17
- 15 - 13
-9 -7 5
Answers
The solution of the inequality is x≥-13 and the graph c represents the inequality, option c is correct.
The given inequality is -1/4(12x+8)≤-2x+11.
Let us solve for x:
Apply distributive property:
-3x-2≤-2x+11
Add 2 on both sides of the inequality:
-3x+2x≤11+2
Combine the like terms:
-x≤13
x≥-13
Hence, the graph of c represents the solution of the inequality.
To learn more on Inequalities click:
https://brainly.com/question/28823603
#SPJ7
What is the length of the hypotenuse?
Answers
Answer:
i think its 12
Step-by-step explanation:
please answer below thx.
Answers
Answer:
24 cm
Step-by-step explanation:
since the two triangles are similar,
10cm/20cm = 36cm _ h/h
Tell whether (5,2) is a solution of x - y<0.
Answers
Answer: yes it is
Step-by-step explanation:
what is the percent of change from 45 to 56 round to the nearest percent
Answers
Step-by-step explanation:
This problem is not about percent or relative change, but about absolute change. Its solution is very simple:
Absolute change, or
change = new value - old value
= 56 - 45 = 11 (increase)
3 4/5 + 4 2/3 + 2 13/15
Answers
Answer:
11\frac{1}{3}
or
11 1/3
convert the following equations from standard form to slope-intercept form.
6x+2y=10
x+y=-3
4x+y=-1
10x-2y=-6
6x-10y=20
Answers
Answer:
1. y = -3x + 5
2. y = -x - 3
3. y = -4x - 1
4. y = 5x + 3
5. y = 3/5x - 2
Step-by-step explanation:
Please help MEEEEEEEH what expression is equivalent to that
Answers
Explanation: When there is a + in front of an expression in parentheses, the expression remains the same since you add the two with the same variables and boom you got your answers
Answer:
i think its d
Step-by-step explanation:
Find x in the equation: 2x + 9 = 5x - 12
Answers
Answer:
x = 7
Step-by-step explanation:
Add 12 to both sides:
2x + 9 = 5x - 12
2x + 21 = 5x
Subtract 2x from both sides:
21 = 3x
Divide each side by 3:
7 = x
So, x = 7
A population of 752,000 people decreases at a rate of 1.4% each year. To the nearest whole number , what will be the population after 18 years?
Answers
Answer:
562496
Step-by-step explanation:
I think
If you are trying to decide whether a system of equations has a solution, would you rather have the equations or the graphs? Why?
Answers
Answer: Graphing
Step-by-step explanation:
Graphing is the best method to use when introducing a new student to solving systems of two equations in two variables, because it gives them a visual to recognize what they are looking for. Graphing is less exact and often takes more time than the other methods.
* Hopefully this helps!
At the time when we have to decide whether the system of equations has a solution so here we do the graphing.
Usage of graphing:It is considered to be the best method at the time when it introduced to the new student for solving the system of 2 equations in 2 variables as it provides the visual to record what actually they have looking.
Also, graphing is considered to be less exact and taken more time as compared to the other methods.
Learn more about graph here: https://brainly.com/question/24299008
8y−5<3
dont worry about this
Answers
Answer:
Y<1
Step-by-step explanation:
Answer:
Inequality Form:
y<1
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Bert's age plus twice Ernie's age is 30. Three times Bert's age plus 8 times Ernie's age is 108. How old are Bert and Ernie?
Answers
Answer:
Bert's age is 15 Ernie's age is 53
Step-by-step explanation:
Evaluate each expression if a = 3 , b = 5 and c=1 b-c
Answers
Answer:
4
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
a = 3, b = 5, c = 1
b - c
Step 2: Evaluate
Substitute: 5 - 1Subtract: 4