What is the first step in solving this system of equations using elimination?
3
y = -x+3
4
2x - 4y = 6
A. Write the second equation in slope-intercept form.
B. Subtract 2x from both sides of the second equation.
C. Write the first equation in standard form.
D. Multiply the first equation by 3.
Please select the best answer from the choices provided
Answers
Answer:
C. Write the first equation in standard form.
Related Questions
A line contains the points (4,4) and (5,2). What is the equation of the line
that contains these two points?
Answers
Answer:y=-2/1x+12
Step-by-step explanation:
To find slope you need to use slope formula (y2-y1)/(x2-x1)
(2-4)/(5-4)
-2/1 is our slope
Now we need the y-int
Y=-2/1x+b
Take one of the given points and apply it to our equation
2=-2/1(5)+b
2=-10/1+b
2=-10+b
Add 10 to each side
12=b
Our final equation is
y=-2/1x+12
What is the slope of the line that passes through (10,-6) and (8,-16)? Write in the simplest form
Answers
Answer:
5
Step-by-step explanation:
y2-y1/x2-x1
-6- -16 = 10
10-8=2
10/2=5
Help!!
Predict what a student would score if they studied for 3.5 hours
Answers
Answer:
85
Step-by-step explanation:
2+2(-3)(7) is the answer negative?
Answers
Answer: -40 so therefore the answer is negative
HELPP MEE I will get five stars I will give brainly and I will give thanks
this is 30 points
Answers
Answer:
3 galllon one is $8 because it is the only thing that you can multiply by 3 to get 24
The 4 gallon one is $9 because it is the only number that you can multiply by 4 to get 36
Step-by-step explanation:
Answer:
4 gal = $9 per gal and 3 gal = $8 per gal
Step-by-step explanation:
you divide the price by the gallon
which means sciencegirl0409 is correct.
At a local fitness center, members pay a $10 membership fee and $4 for each aerobics class.
Nonmembers pay $5 for each aerobics class. For what number of aerobics classes will the cost for
members and nonmembers be the same?
Qu
Thus, for aerobics classes, the cost will be the same for members and nonmembers.
(Type a whole number.)
Answers
Answer:
If both the members and nonmembers take 5 aerobics classes, they will have paid the same amount of money.
Step-by-step explanation:
To solve this problem, we can create a chart:
Step One: Where x equals the number of aerobics classes,
Members Nonmembers
Cost in Dollars 10+3x 0+5x
Step Two: We create an equation to solve for x.
Member Cost=Nonmember Cost
10+3x= 0+5x
Step Three: Solve for x:
10+3x= 5x Subtract 3 from both sides
10=5x-3x Combine like terms
10=2x
5=x
∴For five aerobics classes, the cost of members and nonmembers will be the same.
Which of these strategies would eliminate a variable in the system of equations?
23 - 5y = 13
- 3x + 2y = 13
Choose all answers that apply:
A. Subtract the bottom equation from the top equation.
B. Multiply the top equation by 3. multiply the bottom equation by 2. then add the equations.
C. Multiply the top equation by 2, multiply the bottom equation by 3, then add the equations
Answers
Answer: Multiply the top equation by , multiply 3 the bottom equation by 2, then add the equations.
Step-by-step explanation:
6x - 15y = 39
+ (- 6x + 4y) + (26)
- 11y = 65
if omar earned 1800 reward points how much money did spend
Answers
2 times the difference of t and 11
Answers
Answer:
2(t-11)
Step-by-step explanation:
PLEASE HELP WILL GIVE BRAINLIEST
| -10 - (25) | Determine the value of the expression. My teacher said something about absolute value
Answers
Answer:
35
Step-by-step explanation:
|-10-(25)|=|-10-25|=|-35|=35
-10-25 would equal -35 but since you’re finding the absolute value it would change it to a positive 35:)
remember the absolute value is the distance of the number from zero on a number line, therefore it is always positive
if g(x) = -3x^2 - 5x + 5, calculate g(-3).
Answers
Answer:
g(-3) = -7
Step-by-step explanation:
[tex]g(x) = -3x^2 - 5x + 5\\\\g(-3)=-3(-3)^{2} -5(-3)+5\\\\g(-3)= -27+15+5\\\\g(-3)=-7[/tex]
Answer:
G(-3) = -7
Step-by-step explanation:
Plug the equation into a TI-84 calc into y= and then press 2nd graph which will bring up the table, then scroll down to x=-3
please help me out...
Answers
Answer:
Comunitive
Step-by-step explanation:
Answer:
The answer is Distributive Property
Step by Step:
Your given equation is 7(w+6)+4
You are distributing 7 to w to get 7w, and 7 to 6, to get 42. The plus 4 stays the same because you don't have anything to distribute.
Addition, is obviously wrong, does 7 + 6 = 42? Multiplication is wrong. Sure you might be multiplying, but you are distributing to both numbers. And Commutative is DEFINITY wrong, because it has nothing to do with this situation
:D
First one to answer this gets brainlest:
What is 5 * 4 + (6 / [ 2 + 1 ] ) *11
Answers
Answer:
42
Step-by-step explanation:
5 * 4 + (6 / [ 2 + 1 ] ) *11
5 * 4 +2 * 11
20 +2 * 11
20+ 22
42
Answer:
Step-by-step explanation:
5 x 4 + 6/3 x 11
20 + 2 x 11
20 + 22
42
How many solutions does the following equation have?
LaTeX: 4\left(x-5\right)=4x+104 ( x − 5 ) = 4 x + 10
Group of answer choices
No solution
One solution
Infinitely many solutions
Two solutions
Answers
Answer:
no solution
Step-by-step explanation:
Can someone help please???
The map shows the location of the airport and a warehouse in a city. Though not displayed on the map, there is also a factory 104 miles due north of the warehouse.
A truck traveled from the warehouse to the airport and then to the factory. What is the total number of miles the truck traveled?
A) 130
B)169
C)201
D)208
Answers
Explanation:
We have to make it a right triangle and figure out the other two legs so then we can discover the hypotenuse.
One length is 78 and the other is 104.
So then we do the hypotenuse formula
A^2+B^2=C^2
78^2+104^2=c^2
6084+10816=16900
Then we find the square root of 16900 and that’s your answer.
A rental car agency charges $230.00 per week plus $0.15 per mile to rent a car. How many miles can you travel in one week for $327.50?
The number of miles you can travl in one week for $327.50 is . (Type a whole number.)
PLEASE HELP I WILL MARK YOU BRAINLIEST
Answers
Answer:
14.625
Step-by-step explanation:
327.50- 230.00 = 91.5
91.5 x 0.15 = 14.625
Jessica is hiring a plumber to remodel her bathroom. She knows that this job will take many hours to
complete, so she wants to find a plumber that costs less than $50 per hour (not including the fee for coming
out to her house). A number of plumbers submitted the cost of their most recent job. Which of the following
plumbers cost less than $50 per hour? Select two that apply.
Pattie's Plumbing charged $400 for a 7 hour job. There is no fee to come to the house,
Bill's Plumbing charged $180 for a 2 hour job. This includes a $100 fee to come to the house,
Tyrese's Plumbing charged $280 for a 3.5 hour job. This includes a $120 fee to come to the house.
Shannon's Plumbing charged $370 for a 5.5 hour job. This includes an $80 fee to come to the house.
Axel's Plumbing charged $220 for a 4 hour job. This includes a $10 fee to come to the house,
Answers
Answer:Tyreses plumbing and Bills plumbing
Step-by-step explanation:Tyrese:280-120=160/3.5=45.74
Bill:180-100=80/2=40
Find the value of x
Answers
Answer:
x = 70
y = 110
z = 30
Step-by-step explanation:
all triangles add up to 180
30 + 80 = 110
180 - 110 = 70
x = 70
30 + 40 = 70
70 + 80 = 150
180 - 150 = 30
z = 30
40 + 30 = 70
180 - 70 = 110
y = 110
(+8)-(-9)+(-16)-(-4)=
Answers
Answer:
5
Step-by-step explanation:
8−(−9)−16−(−4)
=5
Answer:
5
Step-by-step explanation:
Mr.Williams, a parking lot owner, sold 20% of his lot to his neighbor. Later that year he sold 20% of the remainder of his lot to another neighbor. What percent of Mr.Williams' original parking lot does he still own?
Answers
Answer: He still owns 64% of the Mr.Williams' original parking.
Step-by-step explanation:
Let x = Area of the original parking plot.
First he sold 20% of his lot to neighbor .
Sold plot = 20% of x = 0.20x [Replace 'of' by '×' and divide number by 100 to remove %]
Reminder= x-0.20x= (1-0.20)x=0.80x
Again he sold 20% of the remainder .
Sold plot = 20% of (0.80x) = 0.20 (0.80x)
= 0.16x
Remainder plot = 0.80x-0.16x= 0.64x
Percent of Mr.Williams' original parking lot does he still own = [tex]\dfrac{0.64x}{x}\times100=64\%[/tex]
Hence, he still owns 64% of the Mr.Williams' original parking.
A triangle with a base of 4 centimeters and height of 3.5 centimeters. She found the area of the enlarged triangle. Her work is shown below. One-half (4) (3.5) (5) = 35 centimeters squared What was Beth's error? She should have divided One-half (4) (3.5) by 5. She should have divided One-half (4) (3.5) by 5 squared. She should have multiplied (4) (3.5) by 5. She should have multiplied One-half (4) (3.5) by 5 squared.
Answers
Answer: She should have multiplied One-half (4) (3.5) by 5 squared.
Step-by-step explanation:
The calculation of Beth is wrong. Since Beth enlarged the triangle below by a scale of 5, she should find the area of the traingle and then multiply by 5².
This will be:
= 1/2 × 4 × 3.5 × 5²
= 2 × 3.5 × 25
= 175cm²
Answer:
d
Step-by-step explanation:
If x = 14, which equation is true?
Answers
Answer:
Is there a picture you can give us? I will try to answer it once you do! :)
Which number line correctly shows 0.8 +0.3?
Answers
Answer:
the second diagram is the answer
The sum of 28 consecutive odd positive integers is a perfect cube. Determine the smallest possible set? What is the first and last terms in the sequence. Plz helppp!
Answers
Answer:
71 + 73 + ..... + 125 = 2,744 = [tex]14^{3}[/tex].
Step-by-step explanation:
The smallest set starts at 71. The last term is 125.
The total is 2,744, which is [tex]14^{3}[/tex].
The smallest possible set is 71,73,75,....125. The first and last terms in the sequence is 71 and 125 respectively.
What is airthmatic sequence?Geometric sequence is the sequence in which the next term is obtained by adding or substracting the previous term with the same number for the whole series.
The sumation of airthmatic sequence is find out using the following formula.
[tex]S=\dfrac{n}{2}(a+l)[/tex]
Here, (a) is the first term of the sequence, (l) is the last term and (n) is the number of terms in sequence.
Let x is the first and the smallest term of the set. This set consists 28 consecutive odd positive integers. Thus, the sum of this set will be,
[tex]\sum=x+(x+2)+(x+4)+...+(x+54)\\\sum=28x+(2+4+6+....+54)\\\sum=28x+[\dfrac{27}{2}(2+54)]\\\sum=28x+756\\\sum=28(x+27)\\\sum=2\times2\times7(x+27)[/tex]
Now here 7 is prime number. The value of (x+27) should be perfect square of 7 and 2 to make it perfect cube. thus,
[tex]x+27=7^2\times2\\x=98-27\\x=71[/tex]
Put this value to find the sequence as,
[tex]71,71+2,71+4......,71+34\\71,73,75,.......125[/tex]
The first term in this set is 71 and last term is 125.
Hence, the smallest possible set is 71,73,75,....125. The first and last terms in the sequence is 71 and 125 respectively.
Learn more about the airthmatic sequence here;
https://brainly.com/question/6561461
PROBLEM: Four women (Linda, Lisa, Glenda, and Dee) are married to four men (Tom, Duane, Ron, and Ernie). From the clues, determine who is married to whom:
· Ernie is Glenda’s brother
· Tom and Duane are training for a marathon next month
· Glenda and Duane were once engaged, but “broke up” later
· Dee has two brothers, but her husband is an only child
· Linda’s husband broke his leg in a ski accident with Ernie and his wife
Who is married to whom?
Answers
Answer:
How about asking your math teacher for help, instead of going to the internet? As your math teacher, I think it would be a better idea than having your teacher find your internet post!
Step-by-step explanation:
I'll be waiting for an email.
The two _______ compared in a ratio are called ______
Answers
Simplify using i
3 + 2i
6 + 5i
Answers
Answer:
-3i
Step-by-step explanation:
6(3+2i)
3(6+5i)
18+12i
-
18+15i
=-3i
Write the sentence as an inequality.
A number x is greater than -6
Answers
What is the slope of the line represented by
y= 12+ 1/2x ?
Answers
Answer:
1/2
Step-by-step explanation:
Answer:
1/2 i think
Step-by-step explanation:
hope this helps :))
Evaluate |a + b - c|, given a = 5, b = -3, and c = -2.
Answers
Answer:
4 or |4| (Absolute value of 4)